{"id":6686,"date":"2022-03-15T10:20:08","date_gmt":"2022-03-15T02:20:08","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=6686"},"modified":"2026-07-01T00:17:16","modified_gmt":"2026-06-30T16:17:16","slug":"modbus-tcp-tong-xun-xie-yi-xiang-jie","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/6686.html","title":{"rendered":"Modbus TCP\u901a\u8baf\u534f\u8bae\u8be6\u89e3"},"content":{"rendered":"<h2 class=\"wp-block-heading\">ModbusTCP\u534f\u8bae\u5206\u6790<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ModbusTCP\u4e0eModbusUDP\u7684\u62a5\u6587\u683c\u5f0f\u662f\u4e00\u6837\u7684\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u5176\u5b9e\u5c31\u662fTCP\u4e0eUDP\u7684\u533a\u522b\uff0c\u56e0\u6b64\u4e0b\u9762\u5c31\u9488\u5bf9ModbusTCP\u7684\u534f\u8bae\u8fdb\u884c\u5206\u6790\uff0cModbusTCP\u4e0eModbusRtu\uff08ModbusASCII\uff09\u4e4b\u95f4\u7684\u533a\u522b\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"e9e9e9\" data-has-transparency=\"true\" style=\"--dominant-color: #e9e9e9;\" decoding=\"async\" sizes=\"(max-width: 509px) 100vw, 509px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640.png\"  class=\"wp-image-6687 has-transparency\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0cModbusTCP\u5728Modbus\u4e32\u884c\u901a\u4fe1\u7684\u57fa\u7840\u4e0a\uff0c\u53bb\u9664\u4e86\u6821\u9a8c\uff08\u7531\u4e8eTCP\u672c\u8eab\u5c31\u5e26\u6709\u6821\u9a8c\u548c\uff09\u548c\u8bbe\u5907\u5730\u5740\uff08ModbusTCP\u5f31\u5316\u4e86\u8bbe\u5907\u5730\u5740\uff0c\u7528IP\u5730\u5740\u6765\u53d6\u4ee3\uff09\uff0c\u518d\u52a0\u4e0aMBAP\u62a5\u6587\u5934\uff08\u53607 bytes\uff09\uff0c\u4e0b\u9762\u9488\u5bf9MBAP\u8fdb\u884c\u5206\u6790\u8bf4\u660e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th>\u57df<\/th><th>\u957f\u5ea6<\/th><th>\u8bf4\u660e<\/th><th>\u5ba2\u6237\u673a<\/th><th>\u670d\u52a1\u5668<\/th><\/tr><\/thead><tbody><tr><td>\u4e8b\u52a1\u5904\u7406\u6807\u8bc6\u7b26<\/td><td>2\u5b57\u8282<\/td><td>Modbus\u8bf7\u6c42\/\u54cd\u5e94\u4e8b\u52a1\u5904\u7406\u7684\u6807\u8bc6<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u590d\u5236\u54cd\u5e94<\/td><\/tr><tr><td>Protocol ID<\/td><td>2\u5b57\u8282<\/td><td>0=Modbus\u534f\u8bae<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u590d\u5236\u54cd\u5e94<\/td><\/tr><tr><td>\u957f\u5ea6<\/td><td>2\u5b57\u8282<\/td><td>\u957f\u5ea6\u4e4b\u540e\u7684\u5b57\u8282\u603b\u6570<\/td><td>\u5ba2\u6237\u673a\u542f\u52a8<\/td><td>\u670d\u52a1\u5668\u542f\u52a8<\/td><\/tr><tr><td>Unit ID<\/td><td>1\u5b57\u8282<\/td><td>\u4e32\u884c\u94fe\u8def\u6216\u5176\u5b83\u603b\u7ebf\u7684\u4ece\u7ad9\u8bc6\u522b<\/td><td>\u5ba2\u6237\u7aef\u542f\u52a8<\/td><td>\u590d\u5236\u54cd\u5e94<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u9488\u5bf9\u5177\u4f53\u62a5\u6587\u8fdb\u884c\u5206\u6790\uff0cModbus\u534f\u8bae\u5728\u4ee5\u592a\u7f51\u94fe\u8def\u4e0a\u7684\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th>\u4e8b\u52a1\u5904\u7406\u6807\u8bc6\u7b26<\/th><th>Protocol ID<\/th><th>\u957f\u5ea6<\/th><th>Unit ID<\/th><th>Function Code<\/th><th>\u6570\u636e<\/th><\/tr><\/thead><tbody><tr><td>2 bytes<\/td><td>2 bytes<\/td><td>2 bytes<\/td><td>1 byte<\/td><td>1 byte<\/td><td>N bytes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u4e86\u4ee5\u4e0a\u7406\u8bba\u57fa\u7840\u4e4b\u540e\uff0c\u4e0b\u9762\u9488\u5bf9\u5404\u4e2a\u529f\u80fd\u7801\u8fdb\u884c\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bfb\u53d6\u8f93\u51fa\u7ebf\u5708<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"dedede\" data-has-transparency=\"false\" style=\"--dominant-color: #dedede;\" decoding=\"async\" sizes=\"(max-width: 624px) 100vw, 624px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-1.png\"  class=\"wp-image-6688 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u542b\u4e49\uff1a\u8bfb\u53d6\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u8f93\u51fa\u7ebf\u5708\uff0c\u8d77\u59cb\u5730\u5740\u4e3a0x13=19\uff0c\u5bf9\u5e94\u5730\u5740\u4e3a00020\uff0c\u7ebf\u5708\u6570\u91cf\u4e3a0x1B=27\uff0c\u5373\u8bfb\u53d61\u53f7\u4ece\u7ad9\u8f93\u51fa\u7ebf\u5708\uff0c\u5730\u5740\u4ece00020-00046\uff0c\u517127\u4e2a\u7ebf\u5708\u7684\u72b6\u6001\u503c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u503c\u5f97\u6ce8\u610f\u4e00\u4e0b\uff0c\u534f\u8bae\u4e2d\u7684\u8d77\u59cb\u5730\u5740\u6307\u7684\u662f\u7d22\u5f15\uff0c\u540e\u9762\u7684\u5730\u5740\u6307\u7684\u662f\u5177\u4f53\u5730\u5740\uff0c\u5bf9\u4e8e\u4efb\u610f\u4e00\u4e2a\u5b58\u50a8\u533a\uff0c\u7d22\u5f15\u90fd\u662f\u4ece0\u5f00\u59cb\u7684\uff0c\u4f46\u662f\u5bf9\u5e94\u7684\u5177\u4f53\u5730\u5740\uff0c\u4e0e\u5b58\u50a8\u533a\u662f\u76f8\u5173\u7684\uff0c\u6bd4\u5982\u8f93\u51fa\u7ebf\u5708\uff0c0\u5bf9\u5e9400001\uff1b\u8f93\u5165\u7ebf\u5708\uff0c0\u5bf9\u5e9410001\uff1b\u8f93\u5165\u5bc4\u5b58\u5668\uff0c0\u5bf9\u5e9430001\uff1b\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c0\u5bf9\u5e9440001\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"e1e1e1\" data-has-transparency=\"false\" style=\"--dominant-color: #e1e1e1;\" decoding=\"async\" sizes=\"(max-width: 616px) 100vw, 616px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-2.png\"  class=\"wp-image-6689 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u542b\u4e49\uff1a\u8fd4\u56de\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u8f93\u51fa\u7ebf\u570800020-00046\uff0c\u517127\u4e2a\u7ebf\u5708\u7684\u72b6\u6001\u503c\uff0c\u8fd4\u56de\u5b57\u8282\u6570\u4e3a4\u4e2a\uff0c\u5206\u522b\u4e3aCD 6B B2 05\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CD=1100 1101 \u5bf9\u5e94 00020-00027<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6B=0110 1011 \u5bf9\u5e94 00028-00035<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B2=1011 0010 \u5bf9\u5e94 00036-00043<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">05=0000 0101 \u5bf9\u5e94 00044-00046<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bfb\u53d6\u8f93\u5165\u7ebf\u5708<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"dddddd\" data-has-transparency=\"false\" style=\"--dominant-color: #dddddd;\" decoding=\"async\" sizes=\"(max-width: 620px) 100vw, 620px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-3.png\"  class=\"wp-image-6690 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u542b\u4e49\uff1a\u8bfb\u53d6\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u8f93\u5165\u7ebf\u5708\uff0c\u8d77\u59cb\u5730\u5740\u4e3a0xC4=196\uff0c\u5bf9\u5e94\u5730\u5740\u4e3a10197\uff0c\u7ebf\u5708\u6570\u91cf\u4e3a0x1D=29\uff0c\u5373\u8bfb\u53d61\u53f7\u4ece\u7ad9\u8f93\u5165\u7ebf\u5708\uff0c\u5730\u5740\u4ece10197-10225\uff0c\u517129\u4e2a\u7ebf\u5708\u7684\u72b6\u6001\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"e2e2e2\" data-has-transparency=\"false\" style=\"--dominant-color: #e2e2e2;\" decoding=\"async\" sizes=\"(max-width: 615px) 100vw, 615px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-4.png\"  class=\"wp-image-6691 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u542b\u4e49\uff1a\u8fd4\u56de\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u8f93\u5165\u7ebf\u570810197-10225\uff0c\u517129\u4e2a\u7ebf\u5708\u7684\u72b6\u6001\u503c\uff0c\u8fd4\u56de\u5b57\u8282\u6570\u4e3a4\u4e2a\uff0c\u5206\u522b\u4e3aCD 6B B2 05\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CD=1100 1101 \u5bf9\u5e94 10197-10204<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6B=0110 1011 \u5bf9\u5e94 10205-10212<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B2=1011 0010 \u5bf9\u5e94 10213-10220<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">05=0000 0101 \u5bf9\u5e94 10221-10225<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"dfdfdf\" data-has-transparency=\"false\" style=\"--dominant-color: #dfdfdf;\" decoding=\"async\" sizes=\"(max-width: 623px) 100vw, 623px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-5.png\"  class=\"wp-image-6692 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u542b\u4e49\uff1a\u8bfb\u53d6\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c\u8d77\u59cb\u5730\u5740\u4e3a0x6B=107\uff0c\u5bf9\u5e94\u5730\u5740\u4e3a40108\uff0c\u5bc4\u5b58\u5668\u6570\u91cf\u4e3a0x02=2\uff0c\u5373\u8bfb\u53d61\u53f7\u4ece\u7ad9\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c\u5730\u5740\u4ece40108-40109\uff0c\u51712\u4e2a\u5bc4\u5b58\u5668\u7684\u6570\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"dddddd\" data-has-transparency=\"false\" style=\"--dominant-color: #dddddd;\" decoding=\"async\" sizes=\"(max-width: 623px) 100vw, 623px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-6.png\"  class=\"wp-image-6693 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u62a5\u6587\u542b\u4e49\uff1a\u8fd4\u56de\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u4fdd\u6301\u5bc4\u5b58\u566840108-40109\uff0c\u51712\u4e2a\u5bc4\u5b58\u5668\u7684\u6570\u503c\uff0c\u8fd4\u56de\u5b57\u8282\u6570\u4e3a4\u4e2a\uff0c\u5206\u522b\u4e3a02 2B 01 06\uff0c40108\u5bf9\u5e94\u6570\u503c\u4e3a0x022B\uff0c40109\u5bf9\u5e94\u6570\u503c\u4e3a0x0106\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bfb\u53d6\u8f93\u5165\u5bc4\u5b58\u5668<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"dfdfdf\" data-has-transparency=\"false\" style=\"--dominant-color: #dfdfdf;\" decoding=\"async\" sizes=\"(max-width: 624px) 100vw, 624px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/640-7.png\"  class=\"wp-image-6694 not-transparent\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u62a5\u6587\u542b\u4e49\uff1a\u8bfb\u53d6\u670d\u52a1\u56681\u53f7\u4ece\u7ad9\u8f93\u5165\u5bc4\u5b58\u5668\uff0c\u8d77\u59cb\u5730\u5740\u4e3a0x6B=107\uff0c\u5bf9\u5e94\u5730\u5740\u4e3a30108\uff0c\u5bc4\u5b58\u5668\u6570\u91cf\u4e3a0x02=2\uff0c\u5373\u8bfb\u53d61\u53f7\u4ece\u7ad9\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c\u5730\u5740\u4ece30108-30109\uff0c\u51712\u4e2a\u5bc4\u5b58\u5668\u7684\u6570\u503c\u3002<\/p>\n\n\n\n<p 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