{"id":27778,"date":"2024-04-25T09:15:56","date_gmt":"2024-04-25T01:15:56","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=27778"},"modified":"2024-04-25T09:32:44","modified_gmt":"2024-04-25T01:32:44","slug":"modbus-ku-kai-fa-jiao-cheng-wan-zheng-ban","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/27778.html","title":{"rendered":"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Modbus\u4f5c\u4e3a\u5f00\u653e\u5f0f\u7684\u5de5\u4e1a\u901a\u8baf\u534f\u8bae\uff0c\u5728\u5404\u79cd\u5de5\u4e1a\u8bbe\u5907\u4e2d\u5e94\u7528\u6781\u5176\u5e7f\u6cdb\u3002\u672c\u4eba\u4e5f\u4f7f\u7528Modbus\u901a\u8baf\u5f88\u591a\u5e74\u4e86\uff0c\u6216\u8005\u7528\u73b0\u6210\u7684\uff0c\u6216\u8005\u9488\u5bf9\u5177\u4f53\u5e94\u7528\u5f00\u53d1\uff0c\u4e00\u76f4\u4ee5\u6765\u90fd\u60f3\u8981\u5f00\u53d1\u4e00\u4e2a\u6bd4\u8f83\u901a\u7528\u7684\u534f\u8bae\u6808\u80fd\u5728\u540e\u7eed\u7684\u9879\u76ee\u4e2d\u590d\u7528\uff0c\u800c\u4e0d\u5fc5\u6bcf\u6b21\u90fd\u5199\u4e00\u904d\u3002\u73b0\u5728\u5229\u7528\u9879\u76ee\u7814\u53d1\u7684\u673a\u4f1a\uff0c\u5f00\u53d1\u4e00\u4e2a\u81ea\u5df1\u7684Modbus\u534f\u8bae\u6808\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u6709\u56fd\u9645\u6807\u51c6\uff0c\u4e5f\u6709\u56fd\u5bb6\u6807\u51c6\uff0c\u5185\u5bb9\u662f\u5b8c\u5168\u4e00\u6837\u7684\u3002\u5728\u6807\u51c6\u949f\u652f\u63012\u79cd\u7269\u7406\u94fe\u8def\uff1a\u4e00\u662f\u57fa\u4e8e<strong>RS485\uff08RS232\uff09\u7684\u4e32\u884c\u94fe\u8def<\/strong>\uff1b\u4e8c\u662f\u57fa\u4e8e<strong>\u4ee5\u592a\u7f51\u7684TCP\/IP\u94fe\u8def<\/strong>\u3002\u4e8b\u5b9e\u4e0a\uff0cModbus\u534f\u8bae\u4f5c\u4e3a\u4e00\u79cd\u5e94\u7528\u5c42\u534f\u8bae\u5bf9\u7269\u7406\u952e\u5b50\u5e76\u6ca1\u6709\u7279\u522b\u7684\u8981\u6c42\uff0c\u5149\u7ea4\u3001\u65e0\u7ebf\u7b49\u90fd\u662f\u53ef\u4ee5\u5b9e\u73b0\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6b21\u4e3b\u8981\u662f\u5f00\u53d1<strong>Modbus RTU<\/strong>\u548c<strong>Modbus TCP<\/strong>\u4e24\u79cd\u6807\u51c6\u534f\u8bae\u65b9\u5f0f\uff0c\u652f\u6301\u5e38\u7528\u7684\u529f\u80fd\u7801\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u529f\u80fd\u7801<\/strong><\/td><td><strong>\u540d\u79f0<\/strong><\/td><td><strong>\u5b9e\u73b0<\/strong><\/td><td><strong>\u63cf\u8ff0<\/strong><\/td><\/tr><tr><td>0x01<\/td><td>\u8bfb\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u53ef\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x02<\/td><td>\u8bfb\u79bb\u6563\u8f93\u5165<\/td><td>\u662f<\/td><td>\u5bf9\u53ea\u8bfb\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x03<\/td><td>\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u53ef\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x04<\/td><td>\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u53ea\u8bfb\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x05<\/td><td>\u5199\u5355\u4e2a\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u5355\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x06<\/td><td>\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u5355\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x0F<\/td><td>\u5199\u591a\u4e2a\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u591a\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x10<\/td><td>\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u591a\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u662f\u4e00\u79cd<strong>\u4e3b\u4ece<\/strong>\uff08\u6216\u8005\u8bf4\u5ba2\u6237\u7aef\/\u670d\u52a1\u5668\uff09\u6a21\u5f0f\u534f\u8bae\uff0c\u6709<strong>\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09<\/strong>\u53d1\u8d77\u4e8b\u52a1\u8bf7\u6c42\uff0c<strong>\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09<\/strong>\u54cd\u5e94\u4e8b\u52a1\u8bf7\u6c42\u3002\u4e00\u822c\u6211\u4eec\u60f3\u8981\u8bbf\u95ee\uff08\u6216\u8005\u8bf4\u88ab\u8bbf\u95ee\uff09\u7684\u8bbe\u5907\u5373\u4e3a\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09\uff0c\u800c\u6211\u4eec\u901a\u5e38\u53bb\u8bbf\u95ee\u522b\u4eba\u7684\u8bbe\u5907\u5c31\u662f\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u3002\u901a\u5e38\u5728RTU\u65f6\u88ab\u79f0\u4e3a\u4e3b\u7ad9\u548c\u4ece\u7ad9\uff0c\u800c\u5728TCP\u65b9\u5f0f\u65f6\u88ab\u79f0\u4e3a\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u8fd9\u79cd\u79f0\u547c\u53ea\u662f\u53eb\u6cd5\u4e0d\u540c\uff0c\u4f46\u5728\u672c\u8d28\u4e0a\u662f\u6ca1\u6709\u533a\u522b\u6211\u7684\u3002\u540e\u7eed\u8fd9\u4e24\u79cd\u79f0\u547c\u6211\u4eec\u4f1a\u540c\u65f6\u4f7f\u7528\u3002\u5728\u8fd9\u6b21\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u8ba1\u5212\u540c\u65f6\u5b9e\u73b0\u4e3b\u7ad9\u548c\u4ece\u7ad9\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u6807\u51c6\u6d41\u7a0b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u542f\u52a8MODBUS \u4e8b\u52a1\u5904\u7406\u7684\u5ba2\u6237\u673a\u521b\u5efa MODBUS \u5e94\u7528\u6570\u636e\u5355\u5143\u3002\u5f53\u4ece\u5ba2\u6237\u673a\u5411\u670d\u52a1\u5668\u8bbe\u5907\u53d1\u9001\u62a5\u6587\u65f6\uff0c\u529f\u80fd\u7801\u5411\u670d\u52a1\u5668\u6307\u793a\u5c06\u6267\u884c\u54ea\u79cd\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u5ba2\u6237\u673a\u5411\u670d\u52a1\u5668\u8bbe\u5907\u53d1\u9001\u7684\u62a5\u6587\u6570\u636e\u57df\u5305\u62ec\u9644\u52a0\u4fe1\u606f\uff0c\u670d\u52a1\u5668\u4f7f\u7528\u8fd9\u4e2a\u4fe1\u606f\u6267\u884c\u529f\u80fd\u7801\u5b9a\u4e49\u7684\u64cd\u4f5c\u3002\u5982\u679c\u5728\u4e00\u4e2a\u6b63\u786e\u63a5\u6536\u7684 MODBUS ADU \u4e2d\uff0c\u4e0d\u51fa\u73b0\u4e0e\u8bf7\u6c42 MODBUS \u529f\u80fd\u6709\u5173\u7684\u5dee\u9519\uff0c\u90a3\u4e48\u670d\u52a1\u5668\u81f3\u5ba2\u6237\u673a\u7684\u54cd\u5e94\u6570\u636e\u57df\u5305\u62ec\u8bf7\u6c42\u6570\u636e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091557206.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u4e8b\u52a1\u5904\u7406\u6d41\u7a0b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u51fa\u73b0\u4e0e\u8bf7\u6c42 MODBUS \u529f\u80fd\u6709\u5173\u7684\u5dee\u9519\uff0c\u90a3\u4e48\u57df\u5305\u62ec\u4e00\u4e2a\u5f02\u5e38\u7801\uff0c\u670d\u52a1\u5668\u5e94\u7528\u80fd\u591f\u4f7f\u7528\u8fd9\u4e2a\u57df\u786e\u5b9a\u4e0b\u4e00\u4e2a\u6267\u884c\u7684\u64cd\u4f5c\u3002\u5f53\u670d\u52a1\u5668\u5bf9\u5ba2\u6237\u673a\u54cd\u5e94\u65f6\uff0c\u5b83\u4f7f\u7528\u529f\u80fd\u7801\u57df\u6765\u6307\u793a\u6b63\u5e38\uff08\u65e0\u5dee\u9519\uff09\u54cd\u5e94\u6216\u8005\u51fa\u73b0\u67d0\u79cd\u5dee\u9519\uff08\u79f0\u4e3a\u5f02\u5e38\u54cd\u5e94\uff09\u3002\u5bf9\u4e8e\u4e00\u4e2a\u6b63\u5e38\u54cd\u5e94\u6765\u8bf4\uff0c\u670d\u52a1\u5668\u4ec5\u5bf9\u539f\u59cb\u529f\u80fd\u7801\u54cd\u5e94\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091557388.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe1\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe1\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f02\u5e38\u4e8b\u52a1\u5904\u7406\u6d41\u7a0b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u64cd\u4f5c\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u6211\u4eec\u5bf9Modbus\u6807\u51c6\u4e8b\u52a1\u6d41\u7a0b\u7684\u7406\u89e3\uff0c\u6211\u4eec\u6765\u8bbe\u8ba1\u4e3b\u7ad9\u548c\u4ece\u7ad9\u7684\u5177\u4f53\u64cd\u4f5c\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e3b\u7ad9\u64cd\u4f5c\u6d41\u7a0b\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u3001\u521d\u59cb\u5316\u4e3b\u7ad9\uff0c\u7ad9\u6807\u8bc6\u7b26\uff0c\u5b9a\u65f6\u5668\u3001<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u3001\u751f\u6210\u8bbf\u95ee\u547d\u4ee4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u751f\u6210\u547d\u4ee4ADU\u5206\u4e24\u5c42\u5b9e\u73b0\uff1a\u7f51\u7edc\u5c42\u548c\u94fe\u8def\u5c42\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u5c42\u5b9e\u73b0\u4e0e\u5177\u4f53\u94fe\u8def\u65e0\u5173\u7684PDU\uff08\u5305\u62ec\u529f\u80fd\u7801\u548c\u6570\u636e\uff0c\u8fd9\u91cc\u7684\u6570\u636e\u6307\u4f20\u9001\u7684\u6570\u636e\uff0c\u5e76\u975e\u6307\u53d8\u91cf\u7684\u503c\uff0c\u4e8b\u5b9e\u4e0a\u6570\u91cf\u548c\u5730\u5740\u4e5f\u5305\u542b\u5728\u5185\uff09\u3002\u5bf9\u5e94\u7684\u6587\u4ef6\u662fmbpdu.c\/.h\uff0c\u5b9e\u73b0\u5bf9pud\u5355\u5143\u7684\u6570\u636e\u5904\u7406\uff0c\u5305\u62ec\u547d\u4ee4\u548c\u54cd\u5e94\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u94fe\u8def\u5c42\u5b9e\u73b0ADU\u7684\u5c01\u88c5\u3002\u5bf9\u5e94\u7684\u6587\u4ef6\u662fmbrtu.c\/.h(\u548cmbtcp.c\/.h\u548cmbascii.c\/.h)\uff0c\u5b9e\u73b0ADU\u5355\u5143\u7684\u5c01\u88c5\uff1b\u540c\u65f6\u4f5c\u4e3a\u4ece\u7ad9\u65f6\uff0c\u5199\u64cd\u4f5c\u7684\u54cd\u5e94\u4e5f\u5728\u6b64\u5904\u5c01\u88c5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff083\uff09\u3001\u5b9a\u65f6\u53d1\u9001\u8bbf\u95ee\u547d\u4ee4\uff0c\u8bfb\u547d\u4ee4\u5b9a\u662f\u8f6e\u8be2\uff0c\u5199\u547d\u4ee4\u5177\u6709\u66f4\u9ad8\u7684\u4f18\u5148\u7ea7\u3002\u5728\u6709\u5199\u547d\u4ee4\u65f6\u6682\u505c\u8bfb\u547d\u4ee4\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff084\uff09\u3001\u89e3\u6790\u63a5\u6536\u5230\u7684\u6570\u636e\uff0c\u8fdb\u884c\u76f8\u5e94\u64cd\u4f5c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ece\u7ad9\u64cd\u4f5c\u6d41\u7a0b\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u3001\u534f\u8bae\u6808\u521d\u59cb\u5316\uff1a\u4ece\u7ad9\u5730\u5740\u8bbe\u7f6e\uff0c\u521b\u5efa\u6570\u636e\u5b58\u50a8\u57df\uff0c\u8bbf\u95ee\u63a7\u5236<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u3001\u4ece\u7ad9\u63a5\u6536\u6d88\u606f\u5e76\u89e3\u6790<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u6790\u6d88\u606f\u540e\u64cd\u4f5c\u6570\u636e\uff08\u8bfb\u5199\u5bf9\u5e94\u5bf9\u8c61\u7684\u503c\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u751f\u6210\u54cd\u5e94<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff083\uff09\u3001\u751f\u6210\u54cd\u5e94\u6570\u636e\u5e76\u56de\u590d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u547d\u4ee4\u683c\u5f0f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u540c\u7684\u529f\u80fd\u7801\u5177\u6709\u4e0d\u540c\u7684\u6d88\u606f\u683c\u5f0f\uff0c\u6211\u4eec\u53ea\u7b80\u5355\u8bf4\u4e00\u4e0b\u6211\u4eec\u5c06\u8981\u5b9e\u73b0\u7684\u4ee5\u4e0a8\u4e2d\u529f\u80fd\u7801\u7684\u4fe1\u606f\u683c\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u529f\u80fd\u78010x01\uff1a\u8bfb\u7ebf\u5708<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u7ebf\u5708\u76841\u81f32000\u4e2a\u8fde\u7eed\u72b6\u6001\u3002\u8bf7\u6c42 PDU\u8be6\u7ec6\u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\uff0c\u5373\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u7ebf\u5708\u5730\u5740\u548c\u7ebf\u5708\u7f16\u53f7\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u7ebf\u5708\u3002\u56e0\u6b64\u5bfb\u5740\u7ebf\u5708 1-16 \u4e3a 0-15\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u6570\u636e\u57df\u7684\u6bcf\u4e2a\u6bd4\u7279\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u7ebf\u5708\u5206\u6210\u4e3a\u4e00\u4e2a\u7ebf\u5708\u3002\u6307\u793a\u72b6\u6001\u4e3a 1= ON \u548c 0= OFF\u3002\u7b2c\u4e00\u4e2a\u6570\u636e\u5b57\u8282\u7684 LSB\uff08\u6700\u4f4e\u6709\u6548\u4f4d\uff09\u5305\u62ec\u5728\u8be2\u95ee\u4e2d\u5bfb\u5740\u7684\u8f93\u51fa\u3002\u5176\u5b83\u7ebf\u5708\u4f9d\u6b21\u7c7b\u63a8\uff0c\u4e00\u76f4\u5230\u8fd9\u4e2a\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\u4e3a\u6b62\uff0c\u5e76\u5728\u540e\u7eed\u5b57\u8282\u4e2d\u4ece\u4f4e\u4f4d\u5230\u9ad8\u4f4d\u7684\u987a\u5e8f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fd4\u56de\u7684\u8f93\u51fa\u6570\u91cf\u4e0d\u662f\u516b\u7684\u500d\u6570\uff0c\u5c06\u7528\u96f6\u586b\u5145\u6700\u540e\u6570\u636e\u5b57\u8282\u4e2d\u7684\u5269\u4f59\u6bd4\u7279\uff08\u4e00\u76f4\u5230\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\uff09\u3002\u5b57\u8282\u6570\u91cf\u57df\u8bf4\u660e\u4e86\u6570\u636e\u7684\u5b8c\u6574\u5b57\u8282\u6570\u3002\u5177\u4f53\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091558245.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe2\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe2\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u529f\u80fd\u78010x02\uff1a\u8bfb\u79bb\u6563\u91cf\u8f93\u5165<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u79bb\u6563\u91cf\u8f93\u5165\u7684 1 \u81f3 2000 \u8fde\u7eed\u72b6\u6001\u3002\u8bf7\u6c42 PDU \u8be6\u7ec6\u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\uff0c\u5373\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u8f93\u5165\u5730\u5740\u548c\u8f93\u5165\u7f16\u53f7\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u8f93\u5165\u3002\u56e0\u6b64\u5bfb\u5740\u8f93\u5165 1-16 \u4e3a 0-15\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u6570\u636e\u57df\u7684\u6bcf\u4e2a\u6bd4\u7279\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u79bb\u6563\u91cf\u8f93\u5165\u5206\u6210\u4e3a\u4e00\u4e2a\u8f93\u5165\u3002\u6307\u793a\u72b6\u6001\u4e3a1=ON \u548c0=OFF\u3002\u7b2c\u4e00\u4e2a\u6570\u636e\u5b57\u8282\u7684 LSB\uff08\u6700\u4f4e\u6709\u6548\u4f4d\uff09\u5305\u62ec\u5728\u8be2\u95ee\u4e2d\u5bfb\u5740\u7684\u8f93\u5165\u3002\u5176\u5b83\u8f93\u5165\u4f9d\u6b21\u7c7b\u63a8\uff0c\u4e00\u76f4\u5230\u8fd9\u4e2a\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\u4e3a\u6b62\uff0c\u5e76\u5728\u540e\u7eed\u5b57\u8282\u4e2d\u4ece\u4f4e\u4f4d\u5230\u9ad8\u4f4d\u7684\u987a\u5e8f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fd4\u56de\u7684\u8f93\u5165\u6570\u91cf\u4e0d\u662f\u516b\u7684\u500d\u6570\uff0c\u5c06\u7528\u96f6\u586b\u5145\u6700\u540e\u6570\u636e\u5b57\u8282\u4e2d\u7684\u5269\u4f59\u6bd4\u7279\uff08\u4e00\u76f4\u5230\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\uff09\u3002\u5b57\u8282\u6570\u91cf\u57df\u8bf4\u660e\u4e86\u6570\u636e\u7684\u5b8c\u6574\u5b57\u8282\u6570\u3002\u5177\u4f53\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091559122.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe3\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe3\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u5b9e\u4e0a\uff0c\u529f\u80fd\u78010x01\u548c0x02\u7684\u6570\u636e\u683c\u5f0f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u64cd\u4f5c\u65b9\u5f0f\u4e5f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u6240\u4e0d\u540c\u53ea\u662f\u64cd\u4f5c\u7684\u5bf9\u8c61\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff083\uff09\u529f\u80fd\u78010x03\uff1a\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u8fde\u7eed\u5757\u7684\u5185\u5bb9\u3002\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u8d77\u59cb\u5bc4\u5b58\u5668\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u5bc4\u5b58\u5668\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u5bc4\u5b58\u5668 1-16 \u4e3a 0-15\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u5bc4\u5b58\u5668\u6570\u636e\u5206\u6210\u6bcf\u4e2a\u5bc4\u5b58\u5668\u6709\u4e24\u5b57\u8282\uff0c\u5728\u6bcf\u4e2a\u5b57\u8282\u4e2d\u76f4\u63a5\u5730\u8c03\u6574\u4e8c\u8fdb\u5236\u5185\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u6bcf\u4e2a\u5bc4\u5b58\u5668\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u5305\u62ec\u9ad8\u4f4d\u6bd4\u7279\uff0c\u5e76\u4e14\u7b2c\u4e8c\u4e2a\u5b57\u8282\u5305\u62ec\u4f4e\u4f4d\u6bd4\u7279\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091600193.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe4\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe4\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u54cd\u5e94\u4fe1\u606f\u7684\u957f\u5ea6\u4e0e\u5177\u4f53\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u6709\u5173\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff084\uff09\u529f\u80fd\u78010x04\uff1a\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6 1 \u81f3\u5927\u7ea6 125 \u7684\u8fde\u7eed\u8f93\u5165\u5bc4\u5b58\u5668\u3002\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u5bc4\u5b58\u5668\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u8f93\u5165\u5bc4\u5b58\u5668 1-16 \u4e3a 0-15\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u5bc4\u5b58\u5668\u6570\u636e\u5206\u6210\u6bcf\u4e2a\u5bc4\u5b58\u5668\u4e3a\u4e24\u5b57\u8282\uff0c\u5728\u6bcf\u4e2a\u5b57\u8282\u4e2d\u76f4\u63a5\u5730\u8c03\u6574\u4e8c\u8fdb\u5236\u5185\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u6bcf\u4e2a\u5bc4\u5b58\u5668\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u5305\u62ec\u9ad8\u4f4d\u6bd4\u7279\uff0c\u5e76\u4e14\u7b2c\u4e8c\u4e2a\u5b57\u8282\u5305\u62ec\u4f4e\u4f4d\u6bd4\u7279\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091600851.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe5\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe5\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u5b9e\u4e0a\uff0c\u529f\u80fd\u78010x03\u548c0x04\u7684\u6570\u636e\u683c\u5f0f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u64cd\u4f5c\u65b9\u5f0f\u4e5f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u6240\u4e0d\u540c\u53ea\u662f\u64cd\u4f5c\u7684\u5bf9\u8c61\u4e0d\u540c\u3002\u54cd\u5e94\u4fe1\u606f\u7684\u957f\u5ea6\u4e0e\u5177\u4f53\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u6709\u5173\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff085\uff09\u529f\u80fd\u78010x05\uff1a\u5199\u5355\u4e2a\u7ebf\u5708<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e0a\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u5355\u4e2a\u8f93\u51fa\u4e3a ON \u6216 OFF\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf7\u6c42\u6570\u636e\u57df\u4e2d\u7684\u5e38\u91cf\u8bf4\u660e\u8bf7\u6c42\u7684ON\/OFF\u72b6\u6001\u3002\u5341\u516d\u8fdb\u5236\u503c0xFF00\u8bf7\u6c42\u8f93\u51fa\u4e3a ON\u3002\u5341\u516d\u8fdb\u5236\u503c0x0000 \u8bf7\u6c42\u8f93\u51fa\u4e3aOFF\u3002\u5176\u5b83\u6240\u6709\u503c\u5747\u662f\u975e\u6cd5\u7684\uff0c\u5e76\u4e14\u5bf9\u8f93\u51fa\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u5f3a\u5236\u7684\u7ebf\u5708\u5730\u5740\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u7ebf\u5708\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u7ebf\u57081\u4e3a0\u3002\u7ebf\u5708\u503c\u57df\u7684\u5e38\u91cf\u8bf4\u660e\u8bf7\u6c42\u7684 ON\/OFF \u72b6\u6001\u3002\u5341\u516d\u8fdb\u5236\u503c 0XFF00 \u8bf7\u6c42\u7ebf\u5708\u4e3a ON\u3002\u5341\u516d\u8fdb\u5236\u503c 0X0000 \u8bf7\u6c42\u7ebf\u5708\u4e3aOFF\u3002\u5176\u5b83\u6240\u6709\u503c\u5747\u4e3a\u975e\u6cd5\u7684\uff0c\u5e76\u4e14\u5bf9\u7ebf\u5708\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u54cd\u5e94\u662f\u8bf7\u6c42\u7684\u5e94\u7b54\uff0c\u5728\u5199\u5165\u7ebf\u5708\u72b6\u6001\u4e4b\u540e\u8fd4\u56de\u8fd9\u4e2a\u6b63\u5e38\u54cd\u5e94\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091601386.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe6\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe6\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uff086\uff09\u529f\u80fd\u78010x06\uff1a\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u5355\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u88ab\u5199\u5165\u5bc4\u5b58\u5668\u7684\u5730\u5740\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u5bc4\u5b58\u5668\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u5bc4\u5b58\u56681\u4e3a0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u54cd\u5e94\u662f\u8bf7\u6c42\u7684\u5e94\u7b54\uff0c\u5728\u5199\u5165\u5bc4\u5b58\u5668\u5185\u5bb9\u4e4b\u540e\u8fd4\u56de\u8fd9\u4e2a\u6b63\u5e38\u54cd\u5e94\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091602566.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe7\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe7\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uff087\uff09\u529f\u80fd\u78010x0F\uff1a\u5199\u591a\u4e2a\u7ebf\u5708<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5f3a\u5236\u7ebf\u5708\u5e8f\u5217\u4e2d\u7684\u6bcf\u4e2a\u7ebf\u5708\u4e3aON\u6216OFF\u3002\u8bf7\u6c42PDU\u8bf4\u660e\u4e86\u5f3a\u5236\u7684\u7ebf\u5708\u53c2\u8003\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u7ebf\u5708\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u7ebf\u57081\u4e3a0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf7\u6c42\u6570\u636e\u57df\u7684\u5185\u5bb9\u8bf4\u660e\u4e86\u88ab\u8bf7\u6c42\u7684ON\/OFF\u72b6\u6001\u3002\u57df\u6bd4\u7279\u4f4d\u7f6e\u4e2d\u7684\u903b\u8f91\u201c1\u201d\u8bf7\u6c42\u76f8\u5e94\u8f93\u51fa\u4e3aON\u3002\u57df\u6bd4\u7279\u4f4d\u7f6e\u4e2d\u7684\u903b\u8f91\u201c0\u201d\u8bf7\u6c42\u76f8\u5e94\u8f93\u51fa\u4e3a OFF\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u54cd\u5e94\u8fd4\u56de\u529f\u80fd\u7801\u3001\u8d77\u59cb\u5730\u5740\u548c\u5f3a\u5236\u7684\u7ebf\u5708\u6570\u91cf\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091603955.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe8\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe8\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uff088\uff09\u529f\u80fd\u78010x10\uff1a\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u8fde\u7eed\u5bc4\u5b58\u5668\u5757(1\u81f3\u7ea6120\u4e2a\u5bc4\u5b58\u5668)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8bf7\u6c42\u6570\u636e\u57df\u4e2d\u8bf4\u660e\u4e86\u8bf7\u6c42\u5199\u5165\u7684\u503c\u3002\u6bcf\u4e2a\u5bc4\u5b58\u5668\u5c06\u6570\u636e\u5206\u6210\u4e24\u5b57\u8282\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u54cd\u5e94\u8fd4\u56de\u529f\u80fd\u7801\u3001\u8d77\u59cb\u5730\u5740\u548c\u88ab\u5199\u5165\u5bc4\u5b58\u5668\u7684\u6570\u91cf\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091604970.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe9\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe9\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6e05\u695a\u4e86\u4ee5\u4e0a\u8fd9\u4e9b\u8bf4\u660e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cbModbus\u534f\u8bae\u7684\u5f00\u53d1\u4e4b\u65c5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u9762\u6211\u4eec\u5df2\u7ecf\u5bf9Modbus\u7684\u57fa\u672c\u4e8b\u52a1\u4f5c\u4e86\u8bf4\u660e\uff0c\u4e5f\u636e\u6b64\u8bbe\u8ba1\u4e86\u6211\u4eec\u5c06\u8981\u5b9e\u73b0\u7684\u4e3b\u4ece\u7ad9\u7684\u64cd\u4f5c\u6d41\u7a0b\u3002\u8fd9\u5176\u4e2d\u4e0eModbus\u76f4\u63a5\u76f8\u5173\u7684\u5c31\u662fModbus\u6d88\u606f\u5e27\u7684\u751f\u6210\u3002Modbus\u6d88\u606f\u5e27\u4e5f\u662f\u5b9e\u73b0Modbus\u901a\u8baf\u534f\u8bae\u7684\u6839\u672c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001<\/strong><strong>Modbus<\/strong><strong>\u6d88\u606f\u5e27\u5206\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MODBUS\u534f\u8bae\u5728\u4e0d\u540c\u7684\u7269\u7406\u94fe\u8def\u4e0a\u7684\u6d88\u606f\u5e27\u6709\u4e00\u4e9b\u5dee\u5f02\uff0c\u4f46\u6211\u4eec\u5206\u6790\u4e00\u4e0b\u5c31\u4f1a\u53d1\u73b0\uff0c\u5728\u8fd9\u4e9b\u4e0d\u540c\u7684\u6d88\u606f\u5e27\u4e2d\u5177\u6709\u4e00\u4e0b\u76f8\u540c\u7684\u90e8\u5206\uff0c\u8fd9\u5bf9\u6211\u4eec\u5b9e\u73b0\u7edf\u4e00\u7684\u6570\u636e\u64cd\u4f5c\u975e\u5e38\u91cd\u8981\uff0c\u5177\u4f53\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>1<\/strong><strong>\uff09\u3001\u7b80\u5355\u534f\u8bae\u6570\u636e\u5355\u5143<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MODBUS\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u4e2a\u4e0e\u57fa\u7840\u901a\u4fe1\u5c42\u65e0\u5173\u7684\u7b80\u5355\u534f\u8bae\u6570\u636e\u5355\u5143\uff08PDU\uff09\u3002\u7b80\u5355\u534f\u8bae\u6570\u636e\u5355\u5143\u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091711747.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe10\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe10\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">PDU\u662f\u4e00\u4e2a\u4e0e\u5177\u4f53\u7684\u4f20\u8f93\u7f51\u7edc\u65e0\u5173\u7684\u90e8\u5206\uff0c\u5305\u542b\u529f\u80fd\u7801\u548c\u6570\u636e\u3002\u5bf9\u4e8e\u7279\u5b9a\u603b\u7ebf\u6216\u7f51\u7edc\u4e0a\u7684 MODBUS \u534f\u8bae\u53ea\u662f\u5728PDU\u7684\u57fa\u7840\u4e0a\u5728\u5e94\u7528\u6570\u636e\u5355\u5143\uff08ADU\uff09\u4e0a\u5f15\u5165\u4e00\u4e9b\u9644\u52a0\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u5355\u5143\u90e8\u5206\u7684\u5f00\u53d1\u662f\u6700\u57fa\u672c\u7684\u90e8\u5206\uff0c\u4e3b\u8981\u662f2\u5404\u65b9\u9762\u7684\u7c7b\u5bb9\uff1a\u4e00\u662f\u751f\u6210\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u8bbf\u95ee\u670d\u52a1\u5668\uff08\u4ece\u7ad9\uff09\u7684\u547d\u4ee4\u90e8\u5206\uff1b\u4e8c\u662f\u751f\u6210\u670d\u52a1\u5668\uff08\u4ece\u7ad9\uff09\u54cd\u5e94\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u56de\u590d\u90e8\u5206\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>2<\/strong><strong>\uff09\u3001<\/strong><strong>RTU<\/strong><strong>\u7684\u5e94\u7528\u6570\u636e\u5355\u5143<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u5728\u4e32\u884c\u94fe\u8def\u4e0a\u8fd0\u884c\u7684Modbus\u534f\u8bae\uff0c\u5176\u5e94\u7528\u6570\u636e\u5355\u5143\uff08ADU\uff09\u662f\u5728PDU\u7684\u57fa\u7840\u4e0a\uff0c\u5728\u524d\u9762\u52a0\u4e0a\u5730\u5740\u57df\uff0c\u540e\u9762\u52a0\u4e0a\u6570\u636e\u6821\u9a8c\u3002\u683c\u5f0f\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091712649.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe11\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe11\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5730\u5740\u57df\u5c31\u662f\u6240\u8bbf\u95ee\u4ece\u7ad9\u7684\u5730\u5740\uff0c\u4e3a\u4e00\u4e2a8\u4f4d\u65e0\u7b26\u53f7\u6570\uff0c\u53d6\u503c0-255\uff0c\u4f460\u548c255\u6709\u56fa\u5b9a\u542b\u4e49\u4e0d\u80fd\u4f7f\u7528\u3002CRC\u6821\u9a8c\u91c7\u7528\u7684\u662fCRC16\u6821\u9a8c\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>3<\/strong><strong>\uff09\u3001<\/strong><strong>TCP<\/strong><strong>\u7684\u5e94\u7528\u6570\u636e\u5355\u5143<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4ee5\u592a\u7f51\u94fe\u8def\u4e0a\u8fd0\u884c\u7684Modbus\u534f\u8bae\uff0c\u5176\u5e94\u7528\u6570\u636e\u5355\u5143\uff08ADU\uff09\u662f\u5728PDU\u7684\u57fa\u7840\u4e0a\u6dfb\u52a0\u4e0aMBAP\u62a5\u6587\u5934\u5f62\u6210\u7684\uff0c\u5177\u4f53\u683c\u5f0f\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091712827.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe12\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe12\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eMBAP \u62a5\u6587\u5934\uff0c\u5305\u62ec\u4e0b\u5217\u57df\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u57df<\/strong><\/td><td><strong>\u957f\u5ea6<\/strong><\/td><td><strong>\u63cf\u8ff0<\/strong><\/td><td><strong>\u5ba2\u6237\u673a<\/strong><\/td><td><strong>\u670d\u52a1\u5668<\/strong><\/td><\/tr><tr><td>\u4e8b\u52a1\u5143\u6807\u8bc6\u7b26<\/td><td>2 \u4e2a\u5b57\u8282<\/td><td>MODBUS \u8bf7\u6c42\/\u54cd\u5e94\u4e8b\u52a1\u5904\u7406\u7684\u8bc6\u522b\u7801<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u670d\u52a1\u5668\u4ece\u63a5\u6536\u7684\u8bf7\u6c42\u4e2d\u91cd\u65b0\u590d\u5236<\/td><\/tr><tr><td>\u534f\u8bae\u6807\u8bc6\u7b26<\/td><td>2 \u4e2a\u5b57\u8282<\/td><td>0=MODBUS \u534f\u8bae<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u670d\u52a1\u5668\u4ece\u63a5\u6536\u7684\u8bf7\u6c42\u4e2d\u91cd\u65b0\u590d\u5236<\/td><\/tr><tr><td>\u957f\u5ea6<\/td><td>2 \u4e2a\u5b57\u8282<\/td><td>\u4ee5\u4e0b\u5b57\u8282\u7684\u6570\u91cf<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8\uff08\u8bf7\u6c42\uff09<\/td><td>\u670d\u52a1\u5668\uff08\u54cd\u5e94\uff09\u542f\u52a8<\/td><\/tr><tr><td>\u5355\u5143\u6807\u8bc6\u7b26<\/td><td>1 \u4e2a\u5b57\u8282<\/td><td>\u4e32\u884c\u94fe\u8def\u6216\u5176\u5b83\u603b\u7ebf\u4e0a\u8fde\u63a5\u7684\u8fdc\u7a0b\u4ece\u7ad9\u7684\u8bc6\u522b\u7801<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u670d\u52a1\u5668\u4ece\u63a5\u6536\u7684\u8bf7\u6c42\u4e2d\u91cd\u65b0\u590d\u5236<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u8868\u4e2d\u53ef\u77e5\u62a5\u6587\u5934\u4e3a 7 \u4e2a\u5b57\u8282\u957f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u5904\u7406\u6807\u8bc6\u7b26\uff1a\u7528\u4e8e\u4e8b\u52a1\u5904\u7406\u914d\u5bf9\u3002\u5728\u54cd\u5e94\u4e2d\uff0cMODBUS \u670d\u52a1\u5668\u590d\u5236\u8bf7\u6c42\u7684\u4e8b\u52a1\u5904\u7406\u6807\u8bc6\u7b26\u3002<br>\u534f\u8bae\u6807\u8bc6\u7b26\uff1a\u7528\u4e8e\u7cfb\u7edf\u5185\u7684\u591a\u8def\u590d\u7528\u3002\u901a\u8fc7\u503c 0 \u8bc6\u522b MODBUS \u534f\u8bae\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u957f\u5ea6\uff1a\u957f\u5ea6\u57df\u662f\u4e0b\u4e00\u4e2a\u57df\u7684\u5b57\u8282\u6570\uff0c\u5305\u62ec\u5355\u5143\u6807\u8bc6\u7b26\u548c\u6570\u636e\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5355\u5143\u6807\u8bc6\u7b26\uff1a\u4e3a\u4e86\u7cfb\u7edf\u5185\u8def\u7531\uff0c\u4f7f\u7528\u8fd9\u4e2a\u57df\u3002\u4e13\u95e8\u7528\u4e8e\u901a\u8fc7\u4ee5\u592a\u7f51TCP-IP \u7f51\u7edc\u548cMODBUS\u4e32\u884c\u94fe\u8def\u4e4b\u95f4\u7684\u7f51\u5173\u5bf9MODBUS\u6216MODBUS+\u4e32\u884c\u94fe\u8def\u4ece\u7ad9\u7684\u901a\u4fe1\u3002\u8bf4\u7684\u7b80\u5355\u70b9\u5c31\u662f\u4e32\u884c\u94fe\u8def\u4e2d\u7684\u5730\u5740\u57df\u3002MODBUS\u5ba2\u6237\u673a\u5728\u8bf7\u6c42\u4e2d\u8bbe\u7f6e\u8fd9\u4e2a\u57df\uff0c\u5728\u54cd\u5e94\u4e2d\u670d\u52a1\u5668\u5fc5\u987b\u5229\u7528\u76f8\u540c\u7684\u503c\u8fd4\u56de\u8fd9\u4e2a\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u6570\u636e\u5e27\u7684\u5177\u4f53\u7ec4\u6210\u5206\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4ee5\u4e0a\u5bf9\u7b80\u5355\u534f\u8bae\u57fa\u672c\u6570\u636e\u5143\u3001RTU\u5e94\u7528\u6570\u636e\u5355\u5143\u548cTCP\u5e94\u7528\u6570\u636e\u5355\u5143\u62a5\u6587\u683c\u5f0f\u7684\u5206\u6790\uff0c\u6211\u4eec\u53d1\u73b0\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u5355\u5143\u90e8\u5206\u5df2\u4e00\u81f4\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u6765\u5206\u5c42\u5c01\u88c5\u534f\u8bae\u64cd\u4f5c\u90e8\u5206\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091713963.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe13\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe13\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f00\u59cb\u5b9e\u73b0Modbus\u57fa\u672c\u6570\u636e\u5355\u5143\uff0c\u8fd9\u662f\u6570\u636e\u516c\u7528\u90e8\u5206\u4e0e\u5177\u4f53\u7684\u5e94\u7528\u65e0\u5173\uff0c\u53ea\u9700\u8981\u5c01\u88c5\u4e00\u6b21\uff0c\u5bf9\u4e8e\u8fd9\u90e8\u5206\u7684\u5f00\u53d1\u53ea\u9700\u8981\u6309\u7167Modbus\u7684\u6807\u51c6\u534f\u8bae\u6765\u5f00\u53d1\u5c31\u597d\uff0c\u672c\u6b21\u6211\u4eec\u8ba1\u5212\u5b9e\u73b0\u7684\u529f\u80fd\u67098\u4e2a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u529f\u80fd\u7801<\/strong><\/td><td><strong>\u540d\u79f0<\/strong><\/td><td><strong>\u5b9e\u73b0<\/strong><\/td><td><strong>\u63cf\u8ff0<\/strong><\/td><\/tr><tr><td>0x01<\/td><td>\u8bfb\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u53ef\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x02<\/td><td>\u8bfb\u79bb\u6563\u8f93\u5165<\/td><td>\u662f<\/td><td>\u5bf9\u53ea\u8bfb\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x03<\/td><td>\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u53ef\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x04<\/td><td>\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u53ea\u8bfb\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u8bfb\u53d6<\/td><\/tr><tr><td>0x05<\/td><td>\u5199\u5355\u4e2a\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u5355\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x06<\/td><td>\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u5355\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x0F<\/td><td>\u5199\u591a\u4e2a\u7ebf\u5708<\/td><td>\u662f<\/td><td>\u5bf9\u591a\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u72b6\u6001\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><tr><td>0x10<\/td><td>\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/td><td>\u662f<\/td><td>\u5bf9\u591a\u4e2a\u7684\u8bfb\u5199\u578b\u7684\u5bc4\u5b58\u5668\u91cf\u8fdb\u884c\u5199\u5165<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd98\u4e2a\u4e5f\u662fModbus\u534f\u8bae\u6240\u5b9a\u4e49\u7684\u6700\u4e3b\u8981\u7684\u529f\u80fd\uff0c\u73b0\u5728\u5bf9\u8fd9\u51e0\u79cd\u529f\u80fd\u7801\u7684\u62a5\u6587\u683c\u5f0f\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>1<\/strong><strong>\uff09\u8bfb\u7ebf\u5708<\/strong><strong>0x01<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bfb\u7ebf\u5708\u5c31\u662f\u90fd\u4e00\u79cd\u53ef\u4ee5\u5199\u7684\u5f00\u5173\u91cf\uff0c\u56e0\u4e3aModbus\u534f\u8bae\u8d77\u6e90\u4e8ePLC\u5e94\u7528\uff0c\u800c\u7ebf\u5708\u662f\u5bf9PLC\u7684DO\u8f93\u51fa\u7684\u79f0\u547c\uff0c\u4e00\u822c\u9002\u7528\u4e8e\u4e3b\u7ad9\u5bf9\u4ece\u7ad9\u4e0b\u8fbe\u64cd\u4f5c\u547d\u4ee4\u3002\u8bfb\u8fd9\u79cd\u5177\u6709\u8bfb\u5199\u529f\u80fd\u7684\u72b6\u6001\u91cf\u7684\u6570\u636e\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091713715.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe14\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe14\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u6570\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>2<\/strong><strong>\uff09\u8bfb\u79bb\u6563\u8f93\u5165<\/strong><strong>0x02<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bfb\u72b6\u6001\u8f93\u5165\u662f\u8bfb\u53d6\u4e00\u79cd\u53ea\u8bfb\u5f00\u5173\u91cf\u4fe1\u53f7\uff0c\u5bf9\u5e94\u4e8ePLC\u4e2d\u7684\u6570\u5b57\u8f93\u5165\u91cf\u3002\u8bfb\u53d6\u8fd9\u79cd\u53ea\u8bfb\u578b\u5f00\u5173\u8f93\u5165\u91cf\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091714774.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe15\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe15\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u6570\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>3<\/strong><strong>\uff09\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668<\/strong><strong>0x03<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u6301\u5bc4\u5b58\u5668\u5c31\u662f\u6307\u53ef\u4ee5\u8bfb\u5199\u768416\u4f4d\u6570\u636e\uff0c\u901a\u8fc7\u5355\u4e2a\u6216\u591a\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u53ef\u4ee5\u7528\u6765\u8868\u793a\u5404\u79cd\u6570\u636e\uff0c\u59828\u4f4d\u6574\u6570\u300116\u4e3a\u6574\u6570\u300132\u4f4d\u6574\u6570\u300164\u4f4d\u6574\u6570\u4ee5\u53ca\u5355\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u7b49\u3002\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091715222.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe16\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe16\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u6570\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>4<\/strong><strong>\uff09\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668<\/strong><strong>0x04<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8f93\u5165\u5bc4\u5b58\u5668\u662f\u4e00\u79cd\u53ea\u8bfb\u5f62\u5f0f\u768416\u4f4d\u6570\u636e\u3002\u901a\u8fc7\u5355\u4e2a\u6216\u591a\u4e2a\u8f93\u5165\u5bc4\u5b58\u5668\u53ef\u4ee5\u8868\u793a8\u4f4d\u6574\u6570\u300116\u4e3a\u6574\u6570\u300132\u4f4d\u6574\u6570\u300164\u4f4d\u6574\u6570\u4ee5\u53ca\u5355\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u7b49\u3002\u8bfb\u53d6\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091715597.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe17\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe17\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u6570\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>5<\/strong><strong>\uff09\u5199\u5355\u4e2a\u7ebf\u5708<\/strong><strong>0x05<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u5355\u4e2a\u7ebf\u5708\u91cf\u5c31\u662f\u5bf9\u5355\u4e2a\u7684\u53ef\u8bfb\u5199\u7684\u5f00\u5173\u91cf\u8fdb\u884c\u64cd\u4f5c\uff0c\u4f46\u662f\u5176\u5e76\u975e\u662f\u76f4\u63a5\u5199\u201c0\u201d\u6216\u8005\u201c1\u201d\uff0c\u800c\u662f\u5728\u9700\u8981\u5199\u201c1\u201d\u65f6\u53d1\u90010xFF00\uff1b\u800c\u5728\u9700\u8981\u5199\u201c0\u201d\u65f6\u53d1\u90010x0000\uff0c\u5176\u5177\u4f53\u7684\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091716323.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe18\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe18\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8f93\u51fa\u5730\u5740+\u8f93\u51fa\u503c\u3002\u547d\u4ee4\u7684\u5177\u4f53\u5185\u5bb9\u4e0e\u8bfb\u64cd\u4f5c\u6709\u533a\u522b\u4f46\uff0c\u683c\u5f0f\u5374\u662f\u5b8c\u5168\u4e00\u6837\uff0c\u5728\u7f16\u7a0b\u65f6\u5b9e\u9645\u8bfb\u548c\u5199\u53ef\u4ee5\u5c01\u88c5\u5728\u4e00\u8d77\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>6<\/strong><strong>\uff09\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/strong><strong>0x06<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u5c31\u662f\u5bf9\u5355\u4e2a\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u8fdb\u884c\u64cd\u4f5c\uff0c\u6570\u636e\u7684\u683c\u5f0f\u4f9d\u7136\u662f\u4e00\u6837\u7684\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u53ea\u9002\u7528\u4e8e\u5bf916\u4f4d\u6574\u578b\u6570\u636e\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u6d6e\u70b9\u6570\u7b49\u5219\u4e0d\u53ef\u4ee5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091716445.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe19\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe19\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8f93\u51fa\u5730\u5740+\u8f93\u51fa\u503c\u3002\u547d\u4ee4\u7684\u5177\u4f53\u5185\u5bb9\u4e0e\u8bfb\u64cd\u4f5c\u6709\u533a\u522b\u4f46\uff0c\u683c\u5f0f\u5374\u662f\u5b8c\u5168\u4e00\u6837\uff0c\u5728\u7f16\u7a0b\u65f6\u5b9e\u9645\u8bfb\u548c\u5199\u53ef\u4ee5\u5c01\u88c5\u5728\u4e00\u8d77\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>7<\/strong><strong>\uff09\u5199\u591a\u4e2a\u7ebf\u5708<\/strong><strong>0x0F<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u591a\u4e2a\u7ebf\u5708\u7684\u64cd\u4f5c\u5bf9\u8c61\u4e0e\u5199\u5355\u4e2a\u7ebf\u5708\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u4e0d\u540c\u7684\u662f\u6570\u91cf\u548c\u64cd\u4f5c\u503c\uff0c\u7279\u522b\u662f\u503c\uff0c\u5199\u201c1\u201d\u5c31\u662f\u201c1\u201d\uff0c\u5199\u201c0\u201d\u5c31\u662f \u201c0\u201d\uff0c\u8fd9\u662f\u4e0e\u5199\u5355\u4e2a\u7ebf\u5708\u7684\u533a\u522b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091717524.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe20\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe20\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u8f93\u51fa\u6570\u91cf+\u5b57\u8282\u6570+\u8f93\u51fa\u503c\u3002\u547d\u4ee4\u62a5\u6587\u4e0e\u524d\u9762\u7684\u51e0\u79cd\u8bfb\u5199\u64cd\u4f5c\u6709\u8f83\u5927\u7684\u533a\u522b\uff0c\u5fc5\u987b\u8981\u5355\u72ec\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff08<\/strong><strong>8<\/strong><strong>\uff09\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/strong><strong>0x10<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u5c31\u662f\u5bf9\u591a\u4e2a\u53ef\u8bfb\u5199\u5bc4\u5b58\u5668\u540c\u65f6\u8fdb\u884c\u64cd\u4f5c\uff0c\u6570\u636e\u62a5\u6587\u7684\u683c\u5f0f\u4e0e\u5199\u591a\u4e2a\u7ebf\u5708\u662f\u4e00\u81f4\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091718606.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe21\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe21\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u8f93\u51fa\u6570\u91cf+\u5b57\u8282\u6570+\u8f93\u51fa\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u57fa\u672c\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ecf\u8fc7\u4e0a\u9762\u7684\u5206\u6790\uff0c\u6211\u4eec\u53d1\u73b0\u4e0d\u8bba\u662f\u5728\u4ec0\u4e48\u6837\u7684\u7269\u7406\u94fe\u8def\u4e0a\u5b9e\u73b0\u7684\u5e94\u7528\u6570\u636e\uff0c\u5668\u57fa\u672c\u6570\u636e\u6bb5\u90fd\u662f\u76f8\u540c\u7684\u3002\u5176\u5b9e\u52a0\u4e0a\u57df\u540d\u6bb5\u7684\u683c\u5f0f\u4e5f\u662f\u76f8\u540c\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u5c06<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57df\u540d+PDU\u4e00\u8d77\u4f5c\u4e3a\u6700\u57fa\u672c\u7684\u6570\u636e\u5355\u5143\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u7531\u5206\u4e3a2\u79cd\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u65f6\uff0c\u5bf9\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09\u65f6\uff0c\u5bf9\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u3001\u4f5c\u4e3aRTU\u4e3b\u7ad9\uff08TCP\u5ba2\u6237\u7aef\uff09\u65f6\uff0c\u751f\u6210\u8bfb\u5199RTU\u4ece\u7ad9\uff08TCP\u670d\u52a1\u5668\uff09\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t GenerateReadWriteCommand(ObjAccessInfo objInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u6570\u5206\u522b\u662fPDU\u5355\u5143\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5199\u5bf9\u8c61\u7684\u5bf9\u5e94\u6570\u636e\uff0c\u4ee5\u53ca\u751f\u6210\u7684\u547d\u4ee4\u5b57\u8282\u3002\u800c\u8fd4\u56de\u503c\u5219\u662f\u751f\u6210\u7684\u547d\u4ee4\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u3001\u4f5c\u4e3a\u4ece\u7ad9(\u670d\u52a1\u5668)\u65f6\uff0c\u751f\u6210\u4e3b\u7ad9\u8bfb\u8bbf\u95ee\u7684\u54cd\u5e94\u3002\u5bf9\u4e8e\u54cd\u5e94\u56e0\u4e3a\u5199\u64cd\u4f5c\u7684\u54cd\u5e94\u5b9e\u9645\u4e0a\u5c31\u662f\u590d\u5236\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u7684\u547d\u4ee4\u7684\u4e00\u90e8\u5206\uff0c\u6240\u4ee5\u6211\u4eec\u5b9e\u9645\u9700\u8981\u751f\u6210\u7684\u54cd\u5e94\u662f\u5305\u62ec0x01\u30010x02\u30010x03\u30010x04\u529f\u80fd\u7801\u7684\u60c5\u5f62\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t GenerateMasterAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u6570\u5206\u522b\u662f\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8bfb\u53d6\u7684\u5bf9\u8c61\u7684\u6570\u636e\uff0c\u4ee5\u53ca\u8fd4\u56de\u7684\u54cd\u5e94\u6d88\u606f\u3002\u800c\u8fd4\u56de\u503c\u5219\u662f\u8fd4\u56de\u7684\u54cd\u5e94\u6d88\u606f\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4<\/strong><strong>\u3001<\/strong><strong>RTU<\/strong><strong>\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eRTU\u5e94\u7528\u6570\u636e\u5355\u5143\u6765\u8bf4\uff0c\u5176\u62a5\u6587\u683c\u5f0f\u5c31\u662f\uff1a\u201c\u57df\u540d+PDU+CRC\u201d\uff0c\u800c\u57df\u540d+PDU\u6211\u4eec\u5728\u4e0a\u4e00\u8282\u4e2d\u5df2\u7ecf\u5b9e\u73b0\u4e86\uff0c\u6240\u4ee5\u8981\u5b9e\u73b0RTU\u7684\u6570\u636e\u5355\u5143\u5b9e\u9645\u4e0a\u6211\u4eec\u53ea\u9700\u8981\u52a0\u4e0aCRC\u6821\u9a8c\u5c31\u5df2\u7ecf\u5b8c\u6210\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eRTU\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u7531\u5206\u4e3a2\u79cd\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u4e3b\u7ad9\u65f6\uff0c\u5bf9\u4ece\u7ad9\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u4ece\u7ad9\u65f6\uff0c\u5bf9\u4e3b\u7ad9\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u3001\u4f5c\u4e3aRTU\u4e3b\u7ad9\u65f6\uff0c\u751f\u6210\u8bfb\u5199RTU\u4ece\u7ad9\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u751f\u6210\u8bfb\u5199\u4ece\u7ad9\u6570\u636e\u5bf9\u8c61\u7684\u547d\u4ee4,\u547d\u4ee4\u957f\u5ea6\u5305\u62ec2\u4e2a\u6821\u9a8c\u5b57\u8282*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t SyntheticReadWriteSlaveCommand(ObjAccessInfo slaveInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u6570\u5206\u522b\u662f\u4ece\u7ad9\u57fa\u672c\u4fe1\u606f\uff0c\u4e0b\u53d1\u7684\u6570\u636e\u5217\u8868\uff0c\u4ee5\u53ca\u6700\u7ec8\u751f\u6210\u7684\u547d\u4ee4\u6570\u7ec4\u3002\u8fd4\u56de\u503c\u662f\u662f\u547d\u4ee4\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u3001\u4f5c\u4e3a\u4ece\u7ad9\u65f6\uff0c\u751f\u6210\u4e3b\u7ad9\u8bfb\u8bbf\u95ee\u7684\u54cd\u5e94\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u751f\u6210\u4ece\u7ad9\u5e94\u7b54\u4e3b\u7ad9\u7684\u54cd\u5e94*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t SyntheticSlaveAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u6570\u5206\u522b\u662f\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8fd4\u56de\u7684\u6570\u636e\u5217\u8868\uff0c\u751f\u6210\u7684\u54cd\u5e94\u4fe1\u606f\u5217\u8868\u3002\u8fd4\u56de\u503c\u662f\u54cd\u5e94\u4fe1\u606f\u5217\u8868\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5<\/strong><strong>\u3001<\/strong><strong>TCP<\/strong><strong>\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u800c\u5bf9\u4e8eTCP\u5e94\u7528\u6570\u636e\u5355\u5143\u6765\u8bf4\uff0c\u4e0eRTU\u7c7b\u5f0f\uff0c\u8d77\u62a5\u6587\u683c\u5f0f\u662f\uff1a\u201cMBAP\u5934+PDU\u201d\uff0c\u800cPDU\u5355\u5143\u5c31\u662f\u524d\u9762\u5b9a\u4e49\u7684\uff0c\u6240\u4ee5\u53ea\u9700\u8981\u52a0\u4e0aMBAP\u5934\u90e8\u5c31\u53ef\u4ee5\u4e86\uff0c\u4e8b\u5b9e\u4e0aMBAP\u5934\u90e8\u7684\u5b9e\u73b0\u683c\u5f0f\u662f\u56fa\u5b9a\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eTCP\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u540c\u6837\u5206\u4e3a2\u4e2d\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u5ba2\u6237\u7aef\u65f6\uff0c\u5bf9\u670d\u52a1\u5668\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u670d\u52a1\u5668\u65f6\uff0c\u5bf9\u5ba2\u6237\u7aef\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u3001\u4f5c\u4e3aTCP\u5ba2\u6237\u7aef\u65f6\uff0c\u751f\u6210\u8bfb\u5199TCP\u670d\u52a1\u5668\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u751f\u6210\u8bfb\u5199\u670d\u52a1\u5668\u5bf9\u8c61\u7684\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t SyntheticReadWriteTCPServerCommand(ObjAccessInfo objInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u3001\u4f5c\u4e3a(\u670d\u52a1\u5668\u65f6\uff0c\u751f\u6210\u5ba2\u6237\u7aef\u8bfb\u5199\u8bbf\u95ee\u7684\u54cd\u5e94\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5408\u6210\u5bf9\u670d\u52a1\u5668\u8bbf\u95ee\u7684\u54cd\u5e94,\u8fd4\u56de\u503c\u4e3a\u547d\u4ee4\u957f\u5ea6*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t SyntheticServerAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>6<\/strong><strong>\u3001\u7ed3\u675f\u8bed<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b9e\u5230\u8fd9\u91cc\u6211\u4eec\u5bf9Modbus\u57fa\u672c\u534f\u8bae\u5df2\u7ecf\u57fa\u672c\u5b9e\u73b0\uff0c\u751a\u81f3\u4f7f\u7528\u8fd9\u4e9b\u57fa\u672c\u64cd\u4f5c\u4e5f\u80fd\u5b9e\u73b0Modbus\u7684\u901a\u8baf\u3002\u4e8b\u5b9e\u4e0a\u5f88\u591a\u4eba\u5728\u5e94\u7528\u5199\u7684Modbus\u901a\u8baf\u534f\u8bae\u6bd4\u8fd9\u8fd8\u8981\u7b80\u5355\uff0c\u4e5f\u80fd\u5b9e\u73b0\u90e8\u5206\u7684Modbus\u901a\u8baf\u529f\u80fd\u3002\u5f53\u7136\u8fd9\u4e0d\u662f\u6211\u4eec\u7684\u76ee\u6807\uff0c\u5426\u5219\u5c31\u4e0d\u9700\u8981\u4e13\u95e8\u5f00\u53d1\u5e93\u4e86\uff0c\u6211\u4eec\u8981\u8fdb\u4e00\u6b65\u5c01\u88c5\uff0c\u8ba9\u5176\u66f4\u901a\u7528\u4e5f\u66f4\u6613\u7528\u624d\u662f\u6211\u4eec\u9700\u8981\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b8c\u6210\u4e86\u524d\u9762\u7684\u5de5\u4f5c\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6709\u9488\u5bf9\u6027\u7684\u5e94\u7528\u4e86\uff0c\u9996\u5148\u6211\u4eec\u6765\u5b9e\u73b0Modbus TCP\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u3002\u5f53\u7136\u6211\u4eec\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5bf9Modbus TCP\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u8fdb\u884c\u5c01\u88c5\u4ee5\u4f9b\u6709\u9700\u8981\u65f6\u8c03\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u6211\u4eec\u4e0d\u6d89\u53caTCP\u7684\u534f\u8bae\uff0c\u8fd9\u90e8\u5206\u4e0eModbus\u6ca1\u6709\u5fc5\u7136\u8054\u7cfb\uff0c\u6211\u4eec\u53ea\u662f\u5728\u5176\u5e94\u7528\u5c42\u8fd0\u884cModbus\u534f\u8bae\u800c\u5df2\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eModbus TCP\u7684\u670d\u52a1\u5668\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u51e0\u4e2a\u529f\u80fd\uff1a\u9996\u5148\u662f\u5bf9\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u547d\u4ee4\u8fdb\u884c\u89e3\u6790\uff0c\u6211\u4eec\u53ea\u5b9e\u73b0\u524d\u9762\u63d0\u5230\u76848\u4e2d\u5e38\u7528\u7684\u529f\u80fd\u5417\u7684\u652f\u6301\u3002\u5176\u6b21\u5728\u89e3\u6790\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u8981\u5b9e\u73b0\u5bf9\u5e94\u5404\u79cd\u529f\u80fd\u7801\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u67b6\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091752703.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe22\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe22\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u547d\u4ee4\u89e3\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u5668\u4f5c\u4e3a\u88ab\u52a8\u7aef\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u540e\uff0c\u5b89\u88c5\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002\u6240\u4ee5\u670d\u52a1\u5668\u63a5\u6536\u5230\u4fe1\u606f\u540e\u9996\u5148\u5bf9\u5176\u8fdb\u884c\u89e3\u6790\uff0c\u8fd9\u91cc\u6211\u4eec\u53ea\u9700\u8981\u4e00\u4e2a\u89e3\u6790\u51fd\u6570\u5c31\u53ef\u4ee5\u5b8c\u6210\uff0c\u5f53\u5728\u5177\u4f53\u5e94\u7528\u4e2d\u65f6\u53ea\u8981\u5c06\u63a5\u6536\u5230\u7684\u4fe1\u606f\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u89e3\u6790\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8fd4\u56de\u54cd\u5e94\u547d\u4ee4\u7684\u957f\u5ea6*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t ParsingClientAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b9e\u5bf9\u5916\u6765\u8bf4\u53ea\u6709\u8fd9\u4e00\u4e2a\u51fd\u6570\u65f6\u53ef\u89c1\u7684\u3002\u5f53\u6211\u4eec\u8981\u5f00\u53d1\u4e00\u4e2aTCP Server\u7684\u5e94\u7528\u65f6\uff0c\u5c31\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u547d\u4ee4\u5904\u7406<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u547d\u4ee4\u89e3\u6790\u51fa\u6765\u4e86\u4e4b\u540e\uff0c\u6309\u4e0d\u540c\u7684\u529f\u80fd\u7801\u6765\u8fdb\u884c\u4e0d\u540c\u7684\u5904\u7406\uff0c\u6211\u4eec\u652f\u63018\u79cd\u529f\u80fd\u7801\uff0c\u6bcf\u79cd\u529f\u80fd\u5417\u90fd\u5bf9\u5e94\u5904\u7406\u90e8\u5206\uff0c\u5f88\u591a\u65f6\u5019\u5927\u5bb6\u90fd\u4f1a\u5728\u89e3\u6790\u7684\u65f6\u5019\u6839\u636e\u89e3\u6790\u7ed3\u679c\u5904\u7406\uff0c\u8fd9\u52bf\u5fc5\u9700\u8981\u4e00\u4e2a\u5f88\u5927\u7684\u89e3\u6790\u51fd\u6570\u3002\u4e3a\u4e86\u7b80\u5316\u64cd\u4f5c\uff0c\u6211\u4eec\u5c06\u6bcf\u4e2a\u529f\u80fd\u7801\u5bf9\u5e94\u7684\u5904\u7406\u90e8\u5206\u90fd\u5c01\u88c5\u4e3a\u4e00\u4e2a\u51fd\u6570\u3002\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u52a8\u6001\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\uff0c\u4ece\u800c\u7b80\u5316\u8fd9\u4e9b\u51fd\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u6211\u4eec\u9700\u89818\u4e2a\u5904\u7406\u5bf9\u5e94\u4e2a\u529f\u80fd\u7801\u64cd\u4f5c\u7684\u51fd\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u7ebf\u5708\u72b6\u6001\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadCoilStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u8f93\u5165\u72b6\u6001\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadInputStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadHoldingRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadInputRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u5355\u4e2a\u7ebf\u5708\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteSingleCoilCommand(uint16_t coilAddress,uint16_t coilValue,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteSingleRegisterCommand(uint16_t registerAddress,uint16_t registerValue,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u591a\u4e2a\u7ebf\u5708\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteMultipleCoilCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteMultipleRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u8c03\u7528\u8fd9\u4e0b\u51fd\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t (*HandleClientCommand[])(uint16_t,uint16_t,uint8_t *,uint8_t *)={HandleReadCoilStatusCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HandleReadInputStatusCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleReadHoldingRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HandleReadInputRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteSingleCoilCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteSingleRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteMultipleCoilCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteMultipleRegisterCommand};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u54cd\u5e94\u7684\u751f\u6210<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u54cd\u5e94\u547d\u4ee4\u7684\u751f\u6210\u5176\u5b9e\u5728\u7b2c\u4e8c\u7bc7\u4e2d\u5df2\u7ecf\u8bf4\u8fc7\u4e86\uff0c\u9700\u8981\u8bf4\u660e\u7684\u662f\u5404\u79cd\u5199\u6570\u636e\u7684\u5177\u4f53\u6570\u503c\u4ee5\u53ca\u83b7\u5f97\u8bfb\u6570\u636e\u7684\u5404\u79cd\u5177\u4f53\u6570\u503c\u6211\u4eec\u5c06\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\u53bb\u5b9e\u73b0\uff0c\u56e0\u4e3a\u8fd9\u90e8\u5206TCP\u548cRTU\u662f\u76f8\u540c\u7684\uff0c\u6211\u4eec\u5c06\u5728\u540e\u7eed\u7684\u7bc7\u7ae0\u4e2d\u8bf4\u660e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e00\u6b21\u6211\u4eec\u5c01\u88c5Modbus TCP Client\u5e94\u7528\u3002\u540c\u6837\u7684\u6211\u4eec\u4e5f\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5b9e\u73b0TCP\u5ba2\u6237\u7aef\u7684\u57fa\u672c\u529f\u80fd\u3002\u6211\u4eec\u5c06TCP\u5ba2\u6237\u7aef\u7684\u529f\u80fd\u5c01\u88c5\u4e3a\u51fd\u6570\uff0c\u4ee5\u4fbf\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\u8c03\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eTCP\u5ba2\u6237\u7aef\u6211\u4eec\u4e3b\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u6709\u4e24\u4e2a\uff1a\u5176\u4e00\u662f\u751f\u6210\u8bbf\u95eeTCP\u670d\u52a1\u5668\u7684\u547d\u4ee4\uff0c\u603b\u5171\u652f\u63018\u4e2d\u529f\u80fd\u7801\u3002\u5176\u4e8c\u662f\u5bf9TCP\u670d\u52a1\u5668\u7aef\u8fd4\u56de\u7684\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\u5e76\u6839\u636e\u7ed3\u679c\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u540c\u6837\u4e5f\u662f\u652f\u63018\u4e2d\u529f\u80fd\u5417\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091824268.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe23\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe23\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u8bbf\u95ee\u547d\u4ee4\u7684\u751f\u6210<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aef\u4f5c\u4e3a\u4e3b\u52a8\u4ea4\u4e92\u7aef\uff0c\u9700\u8981\u5411\u670d\u52a1\u5668\u53d1\u5404\u79cd\u64cd\u4f5c\u8bf7\u6c42\u547d\u4ee4\u3002\u6240\u4ee5\u5bf9\u4e8eTCP\u5ba2\u6237\u7aef\u6765\u8bf4\uff0c\u9996\u5148\u8981\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002\u751f\u6210\u547d\u4ee4\u53ea\u9700\u8981\u6309\u6807\u51c6\u7684\u534f\u8bae\u683c\u5f0f\u6765\u751f\u6210\u5373\u53ef\uff0c\u76ee\u524d\u6211\u4eec\u53ea\u652f\u6301\u524d\u9762\u63d0\u5230\u76848\u4e2a\u529f\u80fd\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t CreateAccessServerCommand(ObjAccessInfo objInfo,void *dataList,uint8_t *commandBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u5728\u5f00\u53d1\u5177\u4f53\u7684\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\u53ea\u9700\u8981\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u54cd\u5e94\u4fe1\u606f\u7684\u89e3\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u524d\u4e00\u8282\u6240\u8ff0\uff0c\u670d\u52a1\u5668\u6536\u5230\u547d\u4ee4\u540e\uff0c\u6839\u636e\u547d\u4ee4\u8fdb\u884c\u5904\u7406\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u63a5\u5230\u547d\u4ee4\u540e\u9996\u5148\u8981\u5bf9\u54cd\u5e94\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u7684\u8fc7\u7a0b\u5176\u5b9e\u4e0e\u670d\u52a1\u5668\u7aef\u662f\u4e00\u81f4\u7684\u3002\u6240\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u9700\u8981\u518d\u6839\u636e\u89e3\u6790\u7ed3\u679c\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u89e3\u6790\u6536\u5230\u7684\u670d\u52a1\u5668\u76f8\u5e94\u4fe1\u606f*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void ParsingServerRespondMessage(uint8_t *recievedMessage)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u5728\u5f00\u53d1\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u8c03\u7528\u8fd9\u4e00\u51fd\u6570\u6765\u89e3\u6790\u54cd\u5e94\u4fe1\u606f\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u54cd\u5e94\u5904\u7406<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u89e3\u6790\u51fa\u6765\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u60c5\u51b5\u5b9e\u73b0\u64cd\u4f5c\uff0c\u6bd4\u5982\u4fee\u6539\u53d8\u91cf\u7684\u503c\u7b49\uff0c\u5e94\u4e3a\u4e3b\u8981\u652f\u6301\u7684\u64cd\u4f5c\u7801\u662f8\u4e2a\uff0c\u7406\u8bba\u4e0a\u5bf9\u5e94\u7684\u6bcf\u79cd\u529f\u80fd\u7801\u90fd\u4f1a\u6709\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u7531\u4e8e\u5199\u64cd\u4f5c\u547d\u4ee4\u5df2\u7ecf\u4e0d\u9700\u8981\u505a\u4efb\u4f55\u64cd\u4f5c\u4e86\uff0c\u6240\u4ee5\u5bf9\u5e94\u7684\u64cd\u4f5c\u5b9e\u9645\u4e0a\u53ea\u6709\u8bfb\u64cd\u4f5c\u76844\u79cd\u529f\u80fd\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u7ebf\u5708\u72b6\u6001\u4f4d0x01\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadCoilStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u72b6\u6001\u4f4d0x02\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadInputStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u4fdd\u6301\u5bc4\u5b58\u56680x03\u529f\u80fd\u7801\uff09*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadHoldingRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u5bc4\u5b58\u56680x04\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadInputRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\u7684\uff0c\u6211\u4eec\u4e5f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd9\u4e9b\u51fd\u6570\u7684\u8c03\u7528\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void (*HandleServerRespond[])(uint8_t *,uint16_t,uint16_t)={HandleReadCoilStatusRespond, HandleReadInputStatusRespond, HandleReadHoldingRegisterRespond, HandleReadInputRegisterRespond};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u6b64\uff0cTCP\u5ba2\u6237\u7aef\u7684\u5c01\u88c5\u5c31\u5b8c\u6210\u4e86\uff0c\u5f53\u7136\u5177\u4f53\u7684\u6570\u636e\u5904\u7406\u90e8\u5206\u9700\u8981\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u662f\u624d\u80fd\u786e\u5b9a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u5728\u4e32\u884c\u94fe\u8def\u4e0a\u5206\u4e3aSlave\u548cMaster\uff0c\u8fd9\u4e00\u8282\u6211\u4eec\u5c31\u6765\u5f00\u53d1Slave\u3002\u5bf9\u4e8eModbus RTU\u4ece\u7ad9\u6765\u8bf4\uff0c\u9700\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u5176\u5b9e\u4e0eModbus TCP\u7684\u670d\u52a1\u5668\u7aef\u662f\u4e00\u6837\u7684\u3002\u5176\u64cd\u4f5c\u8fc7\u7a0b\u4e5f\u662f\u4e00\u6837\u7684\u3002\u9996\u5148\u63a5\u6536\u5230\u4e3b\u7ad9\u7684\u8bbf\u95ee\u547d\u4ee4\uff0c\u5bf9\u8be5\u547d\u4ee4\u62a5\u6587\u8fdb\u884c\u89e3\u6790\uff0c\u8fd9\u91cc\u6211\u4eec\u4e5f\u53ea\u662f\u5b9e\u73b0\u524d\u9762\u63d0\u5230\u76848\u79cd\u529f\u80fd\u7801\u3002\u5176\u6b21\u6211\u4eec\u6839\u636e\u89e3\u6790\u7684\u7ed3\u679c\u8fdb\u884c\u5bf9\u5e94\u7684\u64cd\u4f5c\uff0c\u5177\u4f53\u7684\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091851606.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe24\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe24\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u4e2d\u4e0d\u96be\u53d1\u73b0\u5b9e\u9645\u662f3\u6b65\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c1\u6b65\u3001\u63a5\u5230\u547d\u4ee4\u540e\u5148\u89e3\u6790\u3002\u89e3\u6790\u7684\u65b9\u5f0f\u4e0e\u524d\u9762\u51e0\u8282\u4e2d\u7684\u7c7b\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c2\u6b65\u3001\u6839\u636e\u89e3\u6790\u7ed3\u679c\u8fdb\u884c\u64cd\u4f5c\u3002\u5305\u62ec\u66f4\u5177\u547d\u4ee4\u4fee\u6539\u6216\u8005\u83b7\u53d6\u53d8\u91cf\u7684\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c3\u6b65\u3001\u751f\u6210\u54cd\u5e94\u5e76\u8fd4\u56de\u7ed9\u4e3b\u673a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u89e3\u6790\u4e3b\u673a\u547d\u4ee4<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u673a\u5728\u63a5\u6536\u5230\u4e3b\u673a\u7684\u547d\u4ee4\u62a5\u6587\u540e\uff0c\u5bf9\u5176\u8fdb\u884c\u89e3\u6790\uff0c\u6211\u4eec\u6682\u4e14\u652f\u6301\u4e0a\u56fe\u6240\u793a\u76848\u79cd\u529f\u80fd\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u5e76\u8fd4\u56de\u5408\u6210\u7684\u56de\u590d\u4fe1\u606f\u548c\u4fe1\u606f\u7684\u5b57\u8282\u957f\u5ea6\uff0c\u901a\u8fc7\u56de\u8c03\u51fd\u6570*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t ParsingMasterAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes,uint16_t rxLength)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u51fd\u6570\u63a5\u6536\u63a5\u53d7\u5230\u7684\u62a5\u6587\uff0c\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u62a5\u6587\uff0c\u8fd4\u56de\u503c\u662f\u54cd\u5e94\u62a5\u6587\u7684\u957f\u5ea6\u3002\u5728\u5f00\u53d1\u5e94\u7528\u662f\u5c06\u63a5\u6536\u5230\u7684\u62a5\u6587\u53d1\u9001\u4e2a\u8be5\u51fd\u6570\uff0c\u5e76\u5c06\u751f\u6210\u7684\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u4e2a\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u7ed3\u679c\u64cd\u4f5c<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u6790\u4e4b\u540e\u65e0\u8bba\u662f\u8bfb\u547d\u4ee4\u8fd8\u662f\u5199\u547d\u4ee4\u90fd\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002\u6211\u4eec\u6839\u636e\u4e0d\u540c\u7684\u529f\u80fd\u7801\u5c01\u88c5\u4e0d\u540c\u7684\u64cd\u4f5c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u7ebf\u5708\u72b6\u6001\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadCoilStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u8f93\u5165\u72b6\u6001\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadInputStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadHoldingRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleReadInputRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u5355\u4e2a\u7ebf\u5708\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteSingleCoilCommand(uint16_t coilAddress,uint16_t coilValue,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteSingleRegisterCommand(uint16_t registerAddress,uint16_t registerValue,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u591a\u4e2a\u7ebf\u5708\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteMultipleCoilCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t HandleWriteMultipleRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\u6211\u4eec\u4e5f\u662f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd98\u4e2a\u51fd\u6570\u7684\u8c03\u7528\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t (*HandleMasterCommand[])(uint16_t,uint16_t,uint8_t *,uint8_t *)={HandleReadCoilStatusCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleReadInputStatusCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleReadHoldingRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleReadInputRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HandleWriteSingleCoilCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteSingleRegisterCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteMultipleCoilCommand,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HandleWriteMultipleRegisterCommand};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u751f\u6210\u4ece\u673a\u54cd\u5e94<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5904\u7406\u5b8c\u8fd8\u9700\u8981\u751f\u6210\u4ece\u673a\u7684\u76f8\u5e94\u4fe1\u606f\uff0c\u65e0\u8bba\u662f\u8bfb\u64cd\u4f5c\u547d\u4ee4\u8fd8\u662f\u5199\u64cd\u4f5c\u547d\u4ee4\uff0c\u6211\u4eec\u5747\u5728\u5bf9\u5e94\u7684\u529f\u80fd\u7801\u5904\u7406\u65f6\u751f\u6210\u54cd\u5e94\u62a5\u6587\u3002\u8fd9\u4e48\u4e00\u6765\u5728\u5f00\u53d1\u5e94\u7528\u65f6\uff0c\u53ea\u9700\u8981\u8c03\u7528\u89e3\u6790\u51fd\u6570\u636e\u53ef\u4ee5\u5b9e\u73b0\u5168\u90e8\u7684\u529f\u80fd\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e00\u8282\u6211\u4eec\u6765\u5c01\u88c5\u6700\u540e\u4e00\u79cd\u5e94\u7528\uff08Modbus RTU Master\u5e94\u7528\uff09\uff0cRTU\u4e3b\u7ad9\u7684\u5f00\u53d1\u4e0eTCP\u5ba2\u6237\u7aef\u7684\u5f00\u53d1\u662f\u4e00\u81f4\u7684\u3002\u540c\u6837\u7684\u6211\u4eec\u4e5f\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5b9e\u73b0RTU\u4e3b\u7ad9\u7684\u57fa\u672c\u529f\u80fd\u3002\u6211\u4eec\u5c06RTU\u4e3b\u7ad9\u7684\u529f\u80fd\u5c01\u88c5\u4e3a\u51fd\u6570\uff0c\u4ee5\u4fbf\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\u8c03\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eRTU\u4e3b\u7ad9\u6211\u4eec\u4e3b\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u6709\u4e24\u4e2a\uff1a\u5176\u4e00\u662f\u751f\u6210\u8bbf\u95eeRTU\u4ece\u7ad9\u7684\u547d\u4ee4\uff0c\u603b\u5171\u652f\u63018\u4e2d\u529f\u80fd\u7801\u3002\u5176\u4e8c\u662f\u5bf9RTU\u4ece\u7ad9\u7aef\u8fd4\u56de\u7684\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\u5e76\u6839\u636e\u7ed3\u679c\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u540c\u6837\u4e5f\u662f\u652f\u63018\u4e2d\u529f\u80fd\u5417\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091930369.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe25\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe25\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u8bbf\u95ee\u547d\u4ee4\u7684\u751f\u6210<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aef\u4f5c\u4e3a\u4e3b\u52a8\u4ea4\u4e92\u7aef\uff0c\u9700\u8981\u5411\u670d\u52a1\u5668\u53d1\u5404\u79cd\u64cd\u4f5c\u8bf7\u6c42\u547d\u4ee4\u3002\u6240\u4ee5\u5bf9\u4e8eRTU\u4e3b\u7ad9\u6765\u8bf4\uff0c\u9996\u5148\u8981\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002\u751f\u6210\u547d\u4ee4\u53ea\u9700\u8981\u6309\u6807\u51c6\u7684\u534f\u8bae\u683c\u5f0f\u6765\u751f\u6210\u5373\u53ef\uff0c\u76ee\u524d\u6211\u4eec\u53ea\u652f\u6301\u524d\u9762\u63d0\u5230\u76848\u4e2a\u529f\u80fd\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u751f\u6210\u8bbf\u95ee\u4ece\u7ad9\u7684\u547d\u4ee4*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t CreateAccessSlaveCommand(ObjAccessInfo objInfo,void *dataList,uint8_t *commandBytes)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u5728\u5f00\u53d1\u5177\u4f53\u7684\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\u53ea\u9700\u8981\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u54cd\u5e94\u4fe1\u606f\u7684\u89e3\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u524d\u4e00\u8282\u6240\u8ff0\uff0c\u670d\u52a1\u5668\u6536\u5230\u547d\u4ee4\u540e\uff0c\u6839\u636e\u547d\u4ee4\u8fdb\u884c\u5904\u7406\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u63a5\u5230\u547d\u4ee4\u540e\u9996\u5148\u8981\u5bf9\u54cd\u5e94\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u7684\u8fc7\u7a0b\u5176\u5b9e\u4e0e\u670d\u52a1\u5668\u7aef\u662f\u4e00\u81f4\u7684\u3002\u6240\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u9700\u8981\u518d\u6839\u636e\u89e3\u6790\u7ed3\u679c\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u89e3\u6790\u6536\u5230\u7684\u4ece\u7ad9\u76f8\u5e94\u4fe1\u606f*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void ParsingSlaveRespondMessage(uint8_t *recievedMessage)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u5728\u5f00\u53d1\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u8c03\u7528\u8fd9\u4e00\u51fd\u6570\u6765\u89e3\u6790\u54cd\u5e94\u4fe1\u606f\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u54cd\u5e94\u5904\u7406<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u89e3\u6790\u51fa\u6765\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u60c5\u51b5\u5b9e\u73b0\u64cd\u4f5c\uff0c\u6bd4\u5982\u4fee\u6539\u53d8\u91cf\u7684\u503c\u7b49\uff0c\u5e94\u4e3a\u4e3b\u8981\u652f\u6301\u7684\u64cd\u4f5c\u7801\u662f8\u4e2a\uff0c\u7406\u8bba\u4e0a\u5bf9\u5e94\u7684\u6bcf\u79cd\u529f\u80fd\u7801\u90fd\u4f1a\u6709\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u7531\u4e8e\u5199\u64cd\u4f5c\u547d\u4ee4\u5df2\u7ecf\u4e0d\u9700\u8981\u505a\u4efb\u4f55\u64cd\u4f5c\u4e86\uff0c\u6240\u4ee5\u5bf9\u5e94\u7684\u64cd\u4f5c\u5b9e\u9645\u4e0a\u53ea\u6709\u8bfb\u64cd\u4f5c\u76844\u79cd\u529f\u80fd\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u7ebf\u5708\u72b6\u6001\u4f4d0x01\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadCoilStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u72b6\u6001\u4f4d0x02\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadInputStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u4fdd\u6301\u5bc4\u5b58\u56680x03\u529f\u80fd\u7801\uff09*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadHoldingRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u5bc4\u5b58\u56680x04\u529f\u80fd\u7801*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static void HandleReadInputRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\u7684\uff0c\u6211\u4eec\u4e5f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd9\u4e9b\u51fd\u6570\u7684\u8c03\u7528\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void (*HandleServerRespond[])(uint8_t *,uint16_t,uint16_t)={HandleReadCoilStatusRespond, HandleReadInputStatusRespond, HandleReadHoldingRegisterRespond, HandleReadInputRegisterRespond};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5230\u8fd9\u91cc\uff0cRTU\u4e3b\u7ad9\u7684\u5c01\u88c5\u5c31\u5b8c\u6210\u4e86\uff0c\u5f53\u7136\u5177\u4f53\u7684\u6570\u636e\u5904\u7406\u90e8\u5206\u9700\u8981\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u662f\u624d\u80fd\u786e\u5b9a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u9762\u5f00\u53d1\u4e86\u5404\u79cd\u5e94\u7528\uff0c\u4f46\u662f\u5374\u4e00\u76f4\u6ca1\u6709\u63d0\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u4f60\u5c31\u662f\u5bf9\u5177\u4f53\u7684\u6570\u636e\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u5bf9\u4e8eModbus\u6765\u8bf4\u6807\u51c6\u7684\u6570\u636e\u67094\u79cd\uff1a\u7ebf\u5708\u6570\u636e\uff08\u5730\u5740\uff1a0000x\uff09\u3001\u8f93\u5165\u72b6\u6001\u91cf\u6570\u636e\uff08\u5730\u5740\uff1a1000x\uff09\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\u6570\u636e\uff08\u5730\u5740\uff1a4000x\uff09\u548c\u8f93\u5165\u5bc4\u5b58\u5668\u6570\u636e\uff08\u5730\u5740\uff1a3000x\uff09\u3002\u6211\u4eec\u901a\u8baf\u7684\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\uff0c\u53ef\u662f\u6211\u4eec\u524d\u9762\u7684\u5c01\u88c5\u4e2d\u5e76\u6ca1\u6709\u63d0\u5230\u6570\u636e\u5904\u7406\u3002\u4e8b\u5b9e\u4e0a\uff0c\u4e5f\u6ca1\u529e\u6cd5\u8003\u8651\u8fd9\u4e00\u70b9\uff0c\u56e0\u4e3a\u5177\u4f53\u7684\u5e94\u7528\u6570\u636e\u5343\u5dee\u4e07\u522b\uff0c\u662f\u6ca1\u529e\u6cd5\u5c01\u88c5\u7684\u3002\u90a3\u6211\u4eec\u600e\u4e48\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u89e3\u51b3\u8fd9\u4e00\u7c7b\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001\u6570\u636e\u5904\u7406\u51fd\u6570\u7684\u5c01\u88c5<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u8003\u8651\u5230\uff0c\u4e0d\u8bba\u662f\u5728RTU\u4e3b\u7ad9\u3001RTU\u4ece\u7ad9\u3001TCP\u5ba2\u6237\u7aef\u3001\u8fd8\u662f\u5728TCP\u670d\u52a1\u5668\u5bf9\u6570\u636e\u7684\u5904\u7406\u672c\u8d28\u4e0a\u662f\u4e00\u6837\u7684\uff0c\u53ea\u8981\u5177\u4f53\u5e94\u7528\u7684\u6570\u636e\u7ed3\u6784\u786e\u5b9a\u540e\u5904\u7406\u65b9\u6cd5\u4e5f\u5c31\u786e\u5b9a\u4e86\u3002\u9274\u4e8e\u6b64\uff0c\u6211\u4eec\u91c7\u7528\u7684\u65b9\u6cd5\u662f\u5b9a\u4e49\u5f31\u5316\u7c7b\u578b\u7684\u51fd\u6570\u3002\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void SetSingleCoil(uint16_t coilAddress,bool coilValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void SetSingleRegister(uint16_t registerAddress,uint16_t registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void UpdateCoilStatus(uint16_t startAddress,uint16_t quantity,bool *stateValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u8f93\u5165\u72b6\u6001\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void UpdateInputStatus(uint16_t startAddress,uint16_t quantity,bool *stateValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void UpdateHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">__weak void UpdateInputResgister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5728\u5e94\u7528\u4e2d\u5b9e\u73b0\u5bf9\u5e94\u7684\u51fd\u6570\u5c31\u53ef\u4ee5\u4f7f\u529f\u80fd\u5b8c\u6574\uff0c\u81f3\u4e8e\u5177\u4f53\u7684\u6570\u636e\u5982\u4f55\u5904\u7406\uff0c\u5c31\u8981\u770b\u5177\u4f53\u5e94\u7528\u4e2d\u7684\u6570\u636e\u683c\u5f0f\u4e86\u3002\u5f53\u7136\u8fd9\u4e9b\u51fd\u6570\u5e76\u975e\u90fd\u9700\u8981\u5b9e\u73b0\uff0c\u53ea\u9700\u8981\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u5b9e\u73b0\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u5173\u4e8e\u5927\u5c0f\u7aef\u7684\u95ee\u9898<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63d0\u5230\u6570\u636e\u901a\u8baf\uff0c\u6709\u4e00\u4e2a\u95ee\u9898\u662f\u6ca1\u6709\u529e\u6cd5\u56de\u907f\u7684\uff0c\u90a3\u5c31\u662f\u5927\u5c0f\u7aef\u7684\u95ee\u9898\u3002\u5bf9\u4e8eModbus\u534f\u8bae\u6765\u8bf4\uff0c\u91c7\u7528\u7684\u662f\u5927\u7aef\u6a21\u5f0f\uff0c\u5c31\u662f\u4f4e\u4f4d\u5730\u5740\u5b58\u9ad8\u4f4d\u5b57\u8282\u6570\u636e\uff0c\u9ad8\u4f4d\u5730\u5740\u5b58\u4f4e\u4f4d\u5b57\u8282\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fdb\u884c\u591a\u5b57\u8282\u6570\u636e\u901a\u8baf\u65f6\uff0c\u5927\u5c0f\u7aef\u7684\u95ee\u9898\u5c31\u660e\u663e\u4e86\uff0c\u6bd4\u5982\u4e00\u4e2a\u6d6e\u70b9\u6570\u5728\u4e0d\u540c\u7684\u7cfb\u7edf\u4e2d\u5b58\u50a8\u7684\u987a\u5e8f\u662f\u6709\u5dee\u522b\u7684\uff0c\u4f60\u8bfb\u4e0a\u6765\u6216\u8005\u5199\u4e0b\u53bb\u7684\u6570\u636e\u5c31\u4f1a\u51fa\u73b0\u9519\u8bef\u7684\u89e3\u6790\u3002\u6240\u4ee5\u6211\u4eec\u5728\u5904\u7406\u6570\u636e\u62a5\u6587\u65f6\u662f\u5fc5\u987b\u8003\u8651\u8fd9\u4e00\u70b9\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8c08\u5230Modbus\u901a\u8baf\u81ea\u7136\u514d\u4e0d\u4e86\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff08CRC\uff09\uff0c\u7279\u522b\u662f\u5728\u6807\u51c6\u7684\u4e32\u884cRTU\u94fe\u8def\u4e0a\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u4e0d\u4ec5\u5982\u6b64\u5728\u5176\u4ed6\u5f00\u53d1\u4e2d\uff0c\u4e5f\u7ecf\u5e38\u8981\u7528\u5230CRC&nbsp;<a href=\"http:\/\/lib.csdn.net\/base\/datastructure\" target=\"_blank\" rel=\"noopener noreferrer nofollow noreferrer noopener\">\u7b97\u6cd5<\/a>\u5bf9\u5404\u79cd\u6570\u636e\u8fdb\u884c\u6821\u9a8c\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7814\u7a76\u4e00\u4e0b\u8fd9\u4e2a\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff08CRC\uff09\u7b97\u6cd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1<\/strong><strong>\u3001<\/strong><strong>CRC<\/strong><strong>\u7b80\u8ff0<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5faa\u73af\u5197\u4f59\u68c0\u67e5\uff08CRC\uff09\u662f\u4e00\u79cd\u6570\u636e\u4f20\u8f93\u68c0\u9519\u529f\u80fd\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u591a\u9879\u5f0f\u8ba1\u7b97\uff0c\u5e76\u5c06\u5f97\u5230\u7684\u7ed3\u679c\u9644\u5728\u5e27\u7684\u540e\u9762\uff0c\u63a5\u6536\u8bbe\u5907\u4e5f\u6267\u884c\u7c7b\u4f3c\u7684\u7b97\u6cd5\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u6b63\u786e\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\u6821\u9a8c\u7684\u57fa\u672c\u601d\u60f3\u662f\u5229\u7528\u7ebf\u6027\u7f16\u7801\u7406\u8bba\uff0c\u5728\u53d1\u9001\u7aef\u6839\u636e\u8981\u4f20\u9001\u7684k\u4f4d\u4e8c\u8fdb\u5236\u7801\u5e8f\u5217\uff0c\u4ee5\u4e00\u5b9a\u7684\u89c4\u5219\u4ea7\u751f\u4e00\u4e2a\u6821\u9a8c\u7528\u7684\u76d1\u7763\u7801\uff08\u65e2CRC\u7801\uff09r\u4f4d\uff0c\u5e76\u9644\u5728\u4fe1\u606f\u540e\u8fb9\uff0c\u6784\u6210\u4e00\u4e2a\u65b0\u7684\u4e8c\u8fdb\u5236\u7801\u5e8f\u5217\u6570\u5171(k+r)\u4f4d\uff0c\u6700\u540e\u53d1\u9001\u51fa\u53bb\u3002\u5728\u63a5\u6536\u7aef\uff0c\u5219\u6839\u636e\u4fe1\u606f\u7801\u548cCRC\u7801\u4e4b\u95f4\u6240\u9075\u5faa\u7684\u89c4\u5219\u8fdb\u884c\u68c0\u9a8c\uff0c\u4ee5\u786e\u5b9a\u4f20\u9001\u4e2d\u662f\u5426\u51fa\u9519\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\u7684\u672c\u8d28\u662f\u6a212\u9664\u6cd5\u7684\u4f59\u6570\uff0c\u91c7\u7528\u7684\u9664\u6570\u4e0d\u540c\uff0cCRC\u7684\u7c7b\u578b\u4e5f\u5c31\u4e0d\u4e00\u6837\u3002\u901a\u5e38\uff0cCRC\u7684\u9664\u6570\u7528\u751f\u6210\u591a\u9879\u5f0f\u6765\u8868\u793a\u3002\u6700\u5e38\u7528\u7684CRC\u7801\u7684\u751f\u6210\u591a\u9879\u5f0f\u6709\u4e0b\u9762\u51e0\u79cd\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425092022539.png\" \/ loading=\"lazy\" title=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe26\" alt=\"\u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\u63d2\u56fe26\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u4e0d\u4e00\u6837\u7684\u751f\u6210\u591a\u9879\u5f0f\uff0c\u6240\u4ee5\u5f97\u5230\u7684\u7ed3\u679c\u81ea\u7136\u4e5f\u662f\u4e0d\u4e00\u6837\u7684\u3002\u4e8b\u5b9e\u4e0a\u5728Modbus\u901a\u8baf\u4e2d\u91c7\u7528\u7684\u662fCRC-16\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2<\/strong><strong>\u3001\u7b97\u6cd5\u5206\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CRC\u6821\u9a8c\u7801\u7684\u7f16\u7801\u65b9\u6cd5\u662f\u7528\u5f85\u53d1\u9001\u7684\u4e8c\u8fdb\u5236\u6570\u636et\uff08x\uff09\u9664\u4ee5\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\uff0c\u5c06\u6700\u540e\u7684\u4f59\u6570\u4f5c\u4e3aCRC\u6821\u9a8c\u7801\u3002\u5176\u5b9e\u73b0\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8bbe\u5f85\u53d1\u9001\u7684\u6570\u636e\u5757\u662fm\u4f4d\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0ft\uff08x\uff09\uff0c\u751f\u6210\u591a\u9879\u5f0f\u4e3ar\u9636\u7684g\uff08x\uff09\u3002\u5728\u6570\u636e\u5757\u7684\u672b\u5c3e\u6dfb\u52a0r\u4e2a0\uff0c\u6570\u636e\u5757\u7684\u957f\u5ea6\u589e\u52a0\u5230m+r\u4f4d\uff0c\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f\u4e3a&nbsp;\u3002\u7528\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\u53bb\u9664&nbsp;\uff0c\u6c42\u5f97\u4f59\u6570\u4e3a\u9636\u6570\u4e3ar-1\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0fy\uff08x\uff09\u3002\u6b64\u4e8c\u8fdb\u5236\u591a\u9879\u5f0fy\uff08x\uff09\u5c31\u662ft\uff08x\uff09\u7ecf\u8fc7\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\u7f16\u7801\u7684CRC\u6821\u9a8c\u7801\u3002\u7528&nbsp;\u4ee5\u6a212\u7684\u65b9\u5f0f\u51cf\u53bby\uff08x\uff09\uff0c\u5f97\u5230\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f&nbsp;\u3002&nbsp;\u5c31\u662f\u5305\u542b\u4e86CRC\u6821\u9a8c\u7801\u7684\u5f85\u53d1\u9001\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u4eceCRC\u7684\u7f16\u7801\u89c4\u5219\u53ef\u4ee5\u770b\u51fa\uff0cCRC\u7f16\u7801\u5b9e\u9645\u4e0a\u662f\u5c06\u4ee3\u53d1\u9001\u7684m\u4f4d\u4e8c\u8fdb\u5236\u591a\u9879\u5f0ft\uff08x\uff09\u8f6c\u6362\u6210\u4e86\u53ef\u4ee5\u88abg\uff08x\uff09\u9664\u5c3d\u7684m+r\u4f4d\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f\uff0c\u6240\u4ee5\u89e3\u7801\u65f6\u53ef\u4ee5\u7528\u63a5\u6536\u5230\u7684\u6570\u636e\u53bb\u9664g\uff08x\uff09\uff0c\u5982\u679c\u4f59\u6570\u4f4d\u96f6\uff0c\u5219\u8868\u793a\u4f20\u8f93\u8fc7\u7a0b\u6ca1\u6709\u9519\u8bef\uff1b\u5982\u679c\u4f59\u6570\u4e0d\u4e3a\u96f6\uff0c\u5219\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u80af\u5b9a\u5b58\u5728\u9519\u8bef\u3002\u8bb8\u591aCRC\u7684\u786c\u4ef6\u89e3\u7801\u7535\u8def\u5c31\u662f\u6309\u8fd9\u79cd\u65b9\u5f0f\u8fdb\u884c\u68c0\u9519\u7684\u3002\u540c\u65f6\u53ef\u4ee5\u770b\u4f5c\u662f\u7531t\uff08x\uff09\u548cCRC\u6821\u9a8c\u7801\u7684\u7ec4\u5408\uff0c\u6240\u4ee5\u89e3\u7801\u65f6\u5c06\u63a5\u6536\u5230\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u53bb\u6389\u5c3e\u90e8\u7684r\u4f4d\u6570\u636e\uff0c\u5f97\u5230\u7684\u5c31\u662f\u539f\u59cb\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u5b9e\u9645\u4e0a\uff0c\u771f\u6b63\u7684CRC \u8ba1\u7b97\u901a\u5e38\u4e0e\u4e0a\u9762\u63cf\u8ff0\u7684\u8fd8\u6709\u4e9b\u4e0d\u540c\u3002\u8fd9\u662f\u56e0\u4e3a\u8fd9\u79cd\u6700\u57fa\u672c\u7684CRC\u9664\u6cd5\u5b58\u5728\u4e00\u4e2a\u5f88\u660e\u663e\u7684\u7f3a\u9677\uff0c\u5c31\u662f\u6570\u636e\u6d41\u7684\u5f00\u5934\u6dfb\u52a0\u4e00\u4e9b0\u5e76\u4e0d\u5f71\u54cd\u6700\u540e\u6821\u9a8c\u7684\u7ed3\u679c\u3002\u4e3a\u4e86\u5f25\u8865\u8fd9\u4e00\u7f3a\u9677\u6240\u4ee5\u5f15\u5165\u4e86\u4e24\u4e2a\u6982\u5ff5\uff1a\u4e00\u4e2a\u662f\u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\uff0c\u53e6\u4e00\u4e2a\u662f\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u3002\u6240\u8c13 \u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\u5c31\u662f\u5728\u8ba1\u7b97CRC\u503c\u524d\uff0c\u4e3a\u5b58\u50a8\u53d8\u91cf\u6240\u8d4b\u7684\u521d\u503c\u3002\u5bf9\u5e94\u7684\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u5c31\u662f\u5728\u8ba1\u7b97\u5b8c\u6210\u540e\uff0c\u5c06\u53d8\u91cf\u503c\u4e0e\u8fd9\u4e2a\u503c\u4f5c\u6700\u540e\u7684\u5f02\u6216\u8fd0\u7b97\u800c\u5f97\u5230\u6821\u9a8c\u7ed3\u679c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u540d\u79f0<\/strong><\/td><td>\u6821\u9a8c\u548c\u4f4d\u5bbd<\/td><td>\u751f\u6210\u591a\u9879\u5f0f<\/td><td>\u9664\u6570\uff08\u591a\u9879\u5f0f\uff09<\/td><td>\u4f59\u6570\u521d\u59cb\u503c<\/td><td>\u7ed3\u679c\u5f02\u6216\u503c<\/td><\/tr><tr><td>CRC-4<\/td><td>4<\/td><td>x4+x+1<\/td><td>3<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>CRC-8<\/td><td>8<\/td><td>x8+x5+x4+1<\/td><td>0x31<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>CRC-8<\/td><td>8<\/td><td>x8+x2+x1+1<\/td><td>0x07<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>CRC-8<\/td><td>8<\/td><td>x8+x6+x4+x3+x2+x1<\/td><td>0x5E<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>CRC-12<\/td><td>12<\/td><td>x12+x11+x3+x+1<\/td><td>80F<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td><strong>CRC-16&nbsp;<\/strong><\/td><td><strong>16<\/strong><\/td><td><strong>x16+x15+x2+1<\/strong><\/td><td><strong>0x8005<\/strong><\/td><td><strong>0x0000<\/strong><\/td><td><strong>0x0000<\/strong><\/td><\/tr><tr><td>CRC-CCITT<\/td><td>16<\/td><td>x16+x12+x5+1<\/td><td>0x1021<\/td><td>0xFFFF<\/td><td>0x0000<\/td><\/tr><tr><td>CRC-32<\/td><td>32<\/td><td>x32+x26+x23+x22+x16+x12+x11+x10+x8+x7+x5+x4+x2+x1+1<\/td><td>0x04C11DB7<\/td><td>0xFFFFFFFF<\/td><td>0xFFFFFFFF<\/td><\/tr><tr><td>CRC-32c<\/td><td>32<\/td><td>x32+x28+x27+&#8230;+x8+x6+1<\/td><td>1EDC6F41<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8bf4\u5230\u8fd9\u91cc\u6211\u4eec\u5df2\u7ecf\u53ef\u4ee5\u63cf\u8ff0\u4e00\u4e0b\u8fd9\u4e2a\u7b97\u6cd5\u7684\u5b9e\u73b0\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c1\u6b65\uff1a\u5b9a\u4e49CRC\u5b58\u50a8\u53d8\u91cf\uff0c\u5e76\u7ed9\u5176\u8d4b\u503c\u4e3a\u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c2\u6b65\uff1a\u5c06\u6570\u636e\u7684\u7b2c\u4e00\u4e2a8-bit\u5b57\u7b26\u4e0eCRC\u5b58\u50a8\u53d8\u91cf\u8fdb\u884c\u5f02\u6216\uff0c\u5e76\u628a\u7ed3\u679c\u5b58\u5165CRC\u5b58\u50a8\u53d8\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c3\u6b65\uff1aCRC\u5b58\u50a8\u53d8\u91cf\u5411\u53f3\u79fb\u4e00\u4f4d\uff0cMSB\u8865\u96f6\uff0c\u79fb\u51fa\u5e76\u68c0\u67e5LSB\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c4\u6b65\uff1a\u5982\u679cLSB\u4e3a0\uff0c\u91cd\u590d\u7b2c\u4e09\u6b65\uff1b\u82e5LSB\u4e3a1\uff0cCRC\u5bc4\u5b58\u5668\u4e0e0x31\u76f8\u5f02\u6216\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c5\u6b65\uff1a\u91cd\u590d\u7b2c3\u4e0e\u7b2c4\u6b65\u76f4\u52308\u6b21\u79fb\u4f4d\u5168\u90e8\u5b8c\u6210\u3002\u6b64\u65f6\u4e00\u4e2a8-bit\u6570\u636e\u5904\u7406\u5b8c\u6bd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c6\u6b65\uff1a\u91cd\u590d\u7b2c2\u81f3\u7b2c5\u6b65\u76f4\u5230\u6240\u6709\u6570\u636e\u5168\u90e8\u5904\u7406\u5b8c\u6210\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c7\u6b65\uff1a\u6700\u7ec8CRC\u5b58\u50a8\u53d8\u91cf\u7684\u5185\u5bb9\u4e0e\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u8fdb\u884c\u6216\u975e\u64cd\u4f5c\u540e\u5373\u4e3aCRC\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong><strong>\u3001\u4ee3\u7801\u5b9e\u73b0<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u6709\u4e86\u524d\u9762\u7684\u51c6\u5907\u5b9e\u9645\u4e0a\u6211\u4eec\u8981\u5b9e\u73b0CRC\u6821\u9a8c\u7684\u4ee3\u7801\u5df2\u7ecf\u5f88\u7b80\u5355\u4e86\uff0c\u5b9e\u73b0\u8fd9\u4e00\u8fc7\u7a0b\u6709\u5404\u79cd\u65b9\u6cd5\u6211\u4eec\u8bf4\u5e38\u7528\u76842\u79cd\uff1a\u4e00\u662f\u76f4\u63a5\u8ba1\u7b97\u6cd5\uff0c\u5c31\u662f\u6309\u7167\u524d\u9762\u7684\u6b65\u9aa4\u8ba1\u7b97\u51fa\u6765\uff1b\u4e8c\u662f\u9a71\u52a8\u8868\u6cd5\uff0c\u5c31\u662f\u5c06\u4e00\u4e9b\u6570\u636e\u50a8\u5b58\u8d77\u6765\u76f4\u63a5\u83b7\u53d6\u8ba1\u7b97\u3002\u56e0\u4e3a\u5728Modbus\u4e2d\u4f7f\u7528\u7684\u662fCRC-16\uff0c\u6240\u4ee5\u6211\u4eec\u4e00\u6b21\u4e3a\u4f8b\u6765\u5b9e\u73b0\u5b83\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u76f4\u63a5\u8ba1\u7b97\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f4\u63a5\u8ba1\u7b97\u6cd5\u7b80\u5355\u76f4\u63a5\uff0c\u4fbf\u5199\u7a0b\u5e8f\u4e5f\u6bd4\u8f83\u7b80\u5355\uff0c\u6211\u4eec\u4ee5CRC-16\u4e3a\u4f8b\uff0c\u5176\u591a\u9879\u5f0f\u8bb0\u4e3a0x8005\uff0c\u56e0\u4e3a\u5176\u8bb0\u8fc7\u5f02\u6216\u503c\u4e3a0x0000\uff0c\u6240\u4ee5\u53ef\u4ee5\u4e0d\u6dfb\u52a0\u3002\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">#define Initial_Value&nbsp;&nbsp;&nbsp; 0x0000<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">#define EOR 0x0000<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">#define POLY16 0x8005<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t CRC16(uint8_t *buf,uint16_t length)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; uint16_t crc16,data,val;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; crc16 = Initial_Value;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; for(int i=0;i&lt;length;i++)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; if((i % 8) == 0)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; data = (*buf++)&lt;&lt;8;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; val = crc16 ^ data;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; crc16 = crc16&lt;&lt;1;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; data = data &lt;&lt;1;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; if(val&amp;0x8000)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; crc16 = crc16 ^ POLY16;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; return crc16;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09\u9a71\u52a8\u8868\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp; \u5bf9\u4e8e\u76f4\u63a5\u8ba1\u7b97\u6cd5\uff0c\u867d\u7136\u7b80\u5355\u76f4\u63a5\uff0c\u4f46\u6709\u65f6\u5019\u6548\u7387\u5374\u662f\u4e2a\u95ee\u9898\uff0c\u6240\u4ee5\u5728Modbus\u901a\u8baf\u4e2d\u6211\u4eec\u901a\u5e38\u91c7\u7528\u9a71\u52a8\u8868\u6cd5\u6765\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/CRC_16\u9ad88\u4f4d\u6570\u636e\u533a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">const uint8_t auchCRCHi[] = {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x80, 0x41, 0x00, 0xC1, 0x81, 0x40<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/CRC\u4f4e\u4f4d\u5b57\u8282\u503c\u8868<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">const uint8_t auchCRCLo[] = {\/\/CRC_16\u4f4e8\u4f4d\u6570\u636e\u533a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0x43, 0x83, 0x41, 0x81, 0x80, 0x40<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">};<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u51fd\u6570\u529f\u80fd\uff1aCRC\u6821\u9a8c\u7801\u751f\u6210<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \u8f93\u5165\u53c2\u6570\uff1apuchMsgg\u662f\u8981\u8fdb\u884cCRC\u6821\u9a8c\u7684\u6d88\u606f\uff0cusDataLen\u662f\u6d88\u606f\u4e2d\u5b57\u8282\u6570<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \u51fd\u6570\u8f93\u51fa\uff1a\u8ba1\u7b97\u51fa\u6765\u7684CRC\u6821\u9a8c\u7801<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; GenerateCRC16CheckCode\u67e5\u8868\u8ba1\u7b97\u51fd\u6570*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">static uint16_t GenerateCRC16CheckCode(uint8_t *puckMsg,uint8_t usDataLen)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; uint8_t uchCRCHi = 0xFF ; \/\/\u9ad8CRC\u5b57\u8282\u521d\u59cb\u5316<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; uint8_t uchCRCLo = 0xFF ; \/\/\u4f4eCRC \u5b57\u8282\u521d\u59cb\u5316<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; uint32_t&nbsp; uIndex ; \/\/CRC\u5faa\u73af\u4e2d\u7684\u7d22\u5f15<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u4f20\u8f93\u6d88\u606f\u7f13\u51b2\u533a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; while (usDataLen&#8211;)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; \/\/\u8ba1\u7b97CRC<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; uIndex = uchCRCLo ^ *puckMsg++ ;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; uchCRCLo = uchCRCHi ^ auchCRCHi[uIndex] ;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; uchCRCHi = auchCRCLo[uIndex] ;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; \/\/\u8fd4\u56de\u7ed3\u679c\uff0c\u9ad8\u4f4d\u5728\u524d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; return (uchCRCLo &lt;&lt; 8 |uchCRCHi) ;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4<\/strong><strong>\u3001\u7ed3\u675f\u8bed<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CRC\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u7279\u522b\u662f\u5728\u505a\u901a\u8baf\u65f6\u66f4\u662f\u7ecf\u5e38\u89c1\u5230\uff0c\u6240\u4ee5\u638c\u63e1\u5b83\u662f\u975e\u5e38\u6709\u5fc5\u8981\u7684\uff0c\u81f3\u5c11\u4f1a\u4f7f\u7528\u5b83\u3002\u6211\u4eec\u5728\u5f00\u53d1Modbus\u5e93\u51fd\u6570\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5bf9\u5b83\u4e5f\u4e0d\u8fc7\u662f\u6709\u4e86\u4e00\u4e9b\u6bd4\u8f83\u7c97\u6d45\u7684\u7406\u89e3\uff0c\u5728\u6b64\u8bb0\u8ff0\u4ee5\u6c42\u5171\u8fdb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u9762\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86Modbus\u534f\u8bae\u6808\u7684\u5f00\u53d1\uff0c\u4f46\u8fd9\u4e0d\u662f\u6211\u4eec\u7684\u76ee\u7684\u3002\u6211\u4eec\u5f00\u53d1\u5b83\u7684\u76ee\u7684\u5f53\u7136\u662f\u8981\u4f7f\u7528\u5b83\u6765\u89e3\u51b3\u6211\u4eec\u7684\u5b9e\u9645\u95ee\u9898\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u4f7f\u7528\u521a\u5f00\u53d1\u7684Modbus\u534f\u8bae\u6808\u5f00\u53d1\u4e00\u4e2aModbus TCP Server\u5e94\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f00\u53d1Modbus TCP Server\u9996\u5148\u9700\u8981\u6709TCP Server\u7684\u652f\u6301\u4ee5\u53ca\u7f51\u7edc\u7684\u914d\u7f6e\u7b49\uff0c\u4f46\u8fd9\u4e9b\u4e0eModbus\u672c\u8eab\u6ca1\u6709\u4ec0\u4e48\u5173\u7cfb\uff0c\u6211\u4eec\u518d\u6b21\u4e0d\u4f5c\u8ba8\u8bba\u3002\u6211\u4eec\u89c4\u5b9a\u7f51\u7edc\u548cTCP Server\u5df2\u7ecf\u914d\u7f6e\u59a5\u5f53\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u8ba8\u8bbaModbus TCP Server\u7684\u5b9e\u73b0\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u524d\u9762\u5bf9\u534f\u8bae\u6808\u7684\u5c01\u88c5\uff0c\u6211\u4eec\u9700\u8981\u5f15\u7528Modbus TCP Server\u7684\u76f8\u5173\u5c01\u88c5\u3002\u5728\u63a5\u6536\u5230\u547d\u4ee4\u540e\u8c03\u7528\u89e3\u6790\u51fd\u6570\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u51fd\u6570\u7684\u539f\u578b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">uint16_t ParsingClientAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u51fd\u6570\u4f5c\u4e3a\u51fd\u6570\u6307\u9488\u4f20\u9012\u7ed9TCP Server\uff0c\u5e76\u56de\u8c03\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9664\u6b64\u4e4b\u5916\uff0c\u6211\u4eec\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u8981\u5b9e\u73b08\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u4ee5\u5b8c\u6210\u771f\u6b63\u7684\u5bf9Modbus\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u8fd98\u4e2a\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetSingleCoil(uint16_t coilAddress,bool coilValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetSingleRegister(uint16_t registerAddress,uint16_t registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd98\u4e2a\u51fd\u6570\u6839\u636e\u5e94\u7528\u7684\u5177\u4f53\u9700\u6c42\u6765\u5b9e\u73b0\u6570\u636e\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u5b9e\u73b0\u51e0\u4e2a\u5982\u4f55\u5b9e\u73b0\u6839\u636e\u5404\u81ea\u7684\u5e94\u7528\u9700\u6c42\u548c\u6570\u636e\u7ed3\u6784\u6765\u786e\u5b9a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u4e00\u8282\u6211\u4eec\u4f7f\u7528\u534f\u8bae\u5360\u5f00\u53d1\u4e86\u4e00\u4e2aModbus TCP Server\u5e94\u7528\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4f7f\u7528\u534f\u8bae\u6808\u5728\u5f00\u53d1\u4e00\u4e2a\u57fa\u4e8e\u4e32\u884c\u94fe\u8def\u7684Mosbus RTU Slave\u5e94\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u524d\u9762\u5bf9\u534f\u8bae\u6808\u7684\u5c01\u88c5\uff0c\u6211\u4eec\u9700\u8981\u5f15\u7528Modbus TCP Server\u7684\u76f8\u5173\u5c01\u88c5\u3002\u5728\u63a5\u6536\u5230\u547d\u4ee4\u540e\u8c03\u7528\u89e3\u6790\u51fd\u6570\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u51fd\u6570\u7684\u539f\u578b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ParsingMasterAccessCommand(uint8_t *receivedMesasage,uint8_t *respondBytes,uint16_t rxLength);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RTU Slave\u4f7f\u7528\u4e32\u53e3\u4e2d\u65ad\u63a5\u6536\u4fe1\u606f\uff0c\u63a5\u6536\u5230\u4fe1\u606f\u540e\u4f7f\u7528\u4e0a\u8ff0\u51fd\u6570\u89e3\u6790\u4fe1\u606f\uff0c\u6839\u636e\u63a5\u6536\u7684\u4fe1\u606f\u547d\u4ee4\u5b8c\u6210\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u7136\uff0c\u9664\u4e86\u8c03\u7528\u89e3\u6790\u51fd\u6570\u5916\uff0c\u6211\u4eec\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u8981\u5b9e\u73b08\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u4ee5\u5b8c\u6210\u771f\u6b63\u7684\u5bf9Modbus\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u8fd98\u4e2a\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetSingleCoil(uint16_t coilAddress,bool coilValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetSingleRegister(uint16_t registerAddress,uint16_t registerValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;\/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);<\/p>\n\n\n\n<p 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id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>Modbus\u4f5c\u4e3a\u5f00\u653e\u5f0f\u7684\u5de5\u4e1a\u901a\u8baf\u534f\u8bae\uff0c\u5728\u5404\u79cd\u5de5\u4e1a\u8bbe\u5907\u4e2d\u5e94\u7528\u6781&#8230;<\/p>","protected":false},"author":1,"featured_media":27779,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[691],"tags":[690,859,559,1749],"class_list":["post-27778","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modbus-code-base","tag-modbus-protocol","tag-859","tag-559","tag-1749"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/27778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=27778"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/27778\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/27779"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=27778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=27778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=27778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}