"# MODBUS RTU-4\u51654\u51fa\u7ee7\u7535\u5668\u8bf4\u660e\u4e66\n\n> 2022-06-16 | 2025-04-15\n> https:\/\/www.modbus.cn\/en\/7902.html\n\n**\u4ea7\u54c1\u8bf4\u660e\u4e66**\n\n---\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/2022061600591737.jpg)\n\n## 1. \u4ea7\u54c1\u4ecb\u7ecd\n\n### 1.1. \u4ea7\u54c1\u7b80\u4ecb\n\nMODBUS-0404 \u7cfb\u5217\u4ea7\u54c1\u662f\u91c7\u7528\u6807\u51c6 Modbus- RTU \u534f\u8bae\u7684\u7ee7\u7535\u5668\u8bbe\u5907\uff0c\u652f\u6301 RS485\/232 \u6216 \u7f51\u7edc\u901a\u4fe1\u3002\u652f\u6301\u5bbd\u7535\u538b\u4f9b\u7535\uff0c\u591a\u8def\u8f93\u5165\u8f93\u51fa\u63a7\u5236\uff0c\u53ef\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u751f\u4ea7\u3001\u519c\u4e1a\u3001\u667a\u6167\u57ce \u5e02\u3001\u5199\u5b57\u697c\u7b49\u5404\u7c7b\u5e94\u7528\u573a\u666f\u3002\n\n### 1.2. \u5de5\u4f5c\u6a21\u5f0f\u8bf4\u660e\n\n\u7528\u6237\u53ef\u5728\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4fee\u6539\u914d\u7f6e\u6a21\u5757\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6ce8\u610f\u5404\u578b\u53f7\u8bbe\u5907\u652f\u6301\u7684\u5de5\u4f5c\u6a21\u5f0f\u6709 \u6240\u4e0d\u540c\u3002\n\n### 1.2.1. \u6b63\u5e38\u6a21\u5f0f\n\n\u5bf9\u7ee7\u7535\u5668\u7ed9\u51fa\u65ad\u5f00\u6216\u95ed\u5408\u6307\u4ee4\u540e\uff0c\u7ee7\u7535\u5668\u4f5c\u51fa\u76f8\u5e94\u52a8\u4f5c\uff0c\u4f9d\u7167\u6307\u4ee4\u5b8c\u6210\u65ad\u5f00\u6216\u95ed\u5408\u3002\n\n### 1.2.2. \u95ea\u5f00\u95ea\u95ed\u529f\u80fd\n\n\u95ea\u95ed\uff1a\u7ee7\u7535\u5668\u5904\u4e8e\u95ed\u5408\u72b6\u6001\u65f6\uff0c\u64cd\u4f5c\u7ee7\u7535\u5668\u65ad\u5f00\u4e00\u6bb5\u65f6\u95f4(\u8bbe\u7f6e\u53c2\u6570*0.1s)   \u540e   \u81ea \u52a8\u95ed\u5408\uff1b\n\n\u95ea\u5f00\uff1a\u7ee7\u7535\u5668\u5904\u4e8e\u65ad\u5f00\u72b6\u6001\u65f6\uff0c\u64cd\u4f5c\u7ee7\u7535\u5668\u95ed\u5408\u4e00\u6bb5\u65f6\u95f4(\u8bbe\u7f6e\u53c2\u6570*0.1s)   \u540e   \u81ea \u52a8\u65ad\u5f00\uff1b\n\n\u6ce8\u610f\uff1a\u95ea\u5f00\u95ea\u95ed\u529f\u80fd\u901a\u8fc7\u53d1\u9001\u6307\u4ee4\u5b9e\u73b0\uff0c\u4e0d\u80fd\u4f7f\u7528\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u8fdb\u884c\u6a21\u5f0f\u8bbe\u7f6e\u3002\u652f\u6301\u5355 \u72ec\u63a7\u5236\u4e00\u4e2a\u901a\u9053\u7684\u5ef6\u65f6\u52a8\u4f5c\u3002\n\n### 1.2.5. \u672c\u673a\u4e92\u9501\u6a21\u5f0f\n\n\u6a21\u5757\u672c\u8eab\u5e26\u6709\u5149\u8026\u8f93\u5165\u548c\u7ee7\u7535\u5668\u8f93\u51fa\u7684\u677f\u5361\u6a21\u5757\uff0c\u5728\u8be5\u6a21\u5f0f\u4e0b\uff0c\u5149\u8026\u6bcf\u8f93\u5165\u4e00\u6b21\u4fe1 \u53f7\uff0c\u5bf9\u5e94\u7684\u7ee7\u7535\u5668\u4f1a\u5438\u5408\uff0c\u5176\u4ed6\u672a\u8f93\u5165\u4fe1\u53f7\u5149\u8026\u5bf9\u5e94\u7ee7\u7535\u5668\u4f1a\u65ad\u5f00\u3002\u5373\uff1a\n\n\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u751f\u6548\u279e\u5bf9\u5e94\u7ee7\u7535\u5668\u5438\u5408\u5176\u5b83\u7ee7\u7535\u5668\u65ad\u5f00\uff1b\n\n\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u53d6\u6d88\u279e\u7ee7\u7535\u5668\u4e0d\u52a8\u4f5c\u3002\n\n\u8be5\u6a21\u5f0f\u540c\u6837\u5b58\u5728\u975e\u9501\u6a21\u5f0f\u7684\u5ef6\u8fdf\u95ee\u9898\uff0c\u4f46\u662f\u5ef6\u8fdf\u65f6\u95f4\u540c\u6837\u4e0d\u4f1a\u5927\u4e8e 0.05 \u79d2\u3002\n\n\u8be5\u6a21\u5f0f\u4e3b\u8981\u53ef\u4ee5\u7528\u4e8e\u5916\u90e8\u4fe1\u53f7\u89e6\u53d1\u6765\u63a7\u5236\u4e0d\u540c\u8bbe\u5907\u542f\u505c\u7684\u573a\u5408\uff0c\u4f8b\u5982\u591a\u8def\u5149\u8026\u6ca1\u8def \u5916\u63a5\u4e00\u4e2a\u6309\u94ae\uff0c\u5bf9\u5e94\u7684\u7ee7\u7535\u5668\u5916\u63a5\u7528\u7535\u8bbe\u5907\uff0c\u5219\u6309\u4e00\u8def\u6309\u94ae\uff0c\u5bf9\u5e94\u8bbe\u5907\u5c31\u4f1a\u5207\u6362\u5230\u542f\u52a8\u72b6 \u6001\uff0c\u5176\u5b83\u8bbe\u5907\u5c31\u4f1a\u505c\u6b62\u8fd0\u884c\u3002\n\n### 1.2.6. \u53cc\u673a\u975e\u9501\u8054\u52a8\u6a21\u5f0f\n\n\u8be5\u6a21\u5f0f\u9700\u8981\u4e24\u4e2a\u5730\u5740\u76f8\u540c\u3001\u6a21\u5f0f\u76f8\u540c\u7684\u8bbe\u5907\u5b8c\u6210\uff0c\u4e24\u4e2a\u8bbe\u5907\u901a\u8fc7\u76f4\u8fde 485 \u6216\u8005\u4ea4\u53c9 232 \u8fde\u63a5\u8d77\u6765\u4e4b\u540e\uff0c\u6a21\u5757 1 \u7684\u5149\u8026\u72b6\u6001\u4f1a\u76f4\u63a5\u63a7\u5236\u6a21\u5757 2 \u7684\u5bf9\u5e94\u7ee7\u7535\u5668\u7684\u72b6\u6001 \u3002\u5373\uff1a\n\n\u6a21\u5757 1 \u7684 1 \u53f7\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u751f\u6548\u279e\u6a21\u5757 2 \u7684 1 \u53f7\u7ee7\u7535\u5668\u5438\u5408\uff1b\n\n\u6a21\u5757 1 \u7684 1 \u53f7\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u6d88\u5931\u279e\u6a21\u5757 2 \u7684 1 \u53f7\u7ee7\u7535\u5668\u65ad\u5f00\n\n\u8be5\u6a21\u5f0f\u4e0b\u7684\u7ee7\u7535\u5668\u76f8\u5e94\u5ef6\u8fdf\u65f6\u95f4\u8f83\u524d\u51e0\u79cd\u7684\u6a21\u5f0f\u8981\u957f\uff0c\u4f46\u4e0d\u4f1a\u5927\u4e8e 0.1 \u79d2 (9600 \u6ce2 \u7279\u7387)\n\n\u8be5\u6a21\u5f0f\u4e0b\u5982\u679c\u4f7f\u7528 485 \u603b\u7ebf\u7684\u8bdd\u53ef\u4ee5\u5e76\u8054\u591a\u4e2a\u8bbe\u5907\uff0c\u5176\u4e2d\u8bbe\u5907\u4e24\u4e24\u5730\u5740\u5339\u914d\uff0c\u8fd9\u6837 \u53ef\u4ee5\u505a\u5230\u8fdc\u7a0b\u7684\u5f00\u5173\u91cf\u4f20\u8f93\u3002\u4f8b\u5982\uff1a\u73b0\u573a\u6709\u591a\u4e2a\u4f4e\u901f\u7684\u5f00\u5173\u91cf\u9700\u8981\u4f20\u8f93\u5230 500 \u7c73\u5916\u7684\u63a7 \u5236\u673a\u623f\u53bb\u63a7\u5236\u544a\u8b66\u706f\u6216\u8005\u7535\u94c3\uff0c\u5219\u53ea\u9700\u5728\u5382\u623f\u5e03\u7f6e\u51e0\u4e2a\u6a21\u5757\u901a\u8fc7\u4e24\u6839\u53cc\u7ede\u5c4f\u853d\u7ebf\u8fde\u63a5\u5230 \u673a\u623f\u7684\u5bf9\u5e94\u6a21\u5757\uff0c\u5c31\u53ef\u4ee5\u5b8c\u6210\u8be5\u4efb\u52a1\u3002\u540c\u7406\u4e5f\u53ef\u4ee5\u628a\u673a\u623f\u64cd\u4f5c\u7684\u6309\u94ae\u4fe1\u53f7\u4fe1\u53f7\u76f4\u63a5\u4f20\u9001\u5230\n\n\u4f4d\u4e8e\u673a\u623f\u6a21\u5757\u7684\u7ee7\u7535\u5668\u4e0a\u3002\n\n### 1.2.7. \u53cc\u673a\u81ea\u9501\u8054\u52a8\u6a21\u5f0f\n\n\u8be5\u6a21\u5f0f\u9700\u8981\u4e24\u4e2a\u5730\u5740\u76f8\u540c\u3001\u6a21\u5f0f\u76f8\u540c\u7684\u8bbe\u5907\u5b8c\u6210\uff0c\u4e24\u4e2a\u8bbe\u5907\u901a\u8fc7\u76f4\u8fde 485 \u6216\u8005\u4ea4\u53c9 232 \u8fde\u63a5\u8d77\u6765\u4e4b\u540e\uff0c\u6a21\u5757 1 \u7684\u5149\u8026\u72b6\u6001\u751f\u6548\u4f1a\u7ffb\u8f6c\u63a7\u5236\u6a21\u5757 2 \u7684\u5bf9\u5e94\u7ee7\u7535\u5668\u7684\u72b6\u6001\uff0c\u5373\uff1a\n\n\u6a21\u5757 1 \u7684 1 \u53f7\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u751f\u6548\u279e\u6a21\u5757 2 \u7684 1 \u53f7\u7ee7\u7535\u5668\u7ffb\u8f6c\uff1b\n\n\u6a21\u5757 1 \u7684 1 \u53f7\u5149\u8026\u8f93\u5165\u4fe1\u53f7\u6d88\u5931\u279e\u6a21\u5757 2 \u7684 1 \u53f7\u7ee7\u7535\u5668\u4e0d\u52a8\u4f5c\n\n\u8be5\u6a21\u5f0f\u7684\u5e94\u7528\u4e0e\u201c\u53cc\u673a\u975e\u9501\u8054\u52a8\u201d\u6a21\u5f0f\u7c7b\u4f3c\uff0c\u4f46\u66f4\u9002\u5408\u4e8e\u8fdc\u7a0b\u63a7\u5236\u8bbe\u5907\u7684\u542f\u505c\uff0c\u53ea\u9700\n\n\u5728\u64cd\u4f5c\u7aef\u5b89\u88c5\u4e00\u4e2a\u6309\u94ae\u5373\u53ef\u5b9e\u73b0\u6309\u4e00\u6b21\u542f\u52a8\u6309\u4e00\u6b21\u505c\u6b62\u7684\u52a8\u4f5c\u3002\n\n\u4ea7\u54c1\u5de5\u4f5c\u6a21\u5f0f\u56fe\n\n## 2. \u89c4\u683c\u53c2\u6570\n\n\u4ea7\u54c1\u89c4\u683c\u53c2\u6570\n\n\u53c2\u6570\u8bf4\u660e\u5de5\u4f5c\u7535\u538b9-28V DC (\u652f\u6301\u9632\u53cd\u63a5) \u8bbe\u5907\u529f\u8017(W)12V \u4f9b\u7535\uff1a\u4e0d\u5f00\uff1a<0.5\uff1b\u5168\u5f00\uff1a<324V \u4f9b\u7535\uff1a\u4e0d\u5f00\uff1a<0.5\uff1b\u5168\u5f00\uff1a<3\u7535\u6e90\u6307\u793a\u5177\u5907 1 \u8def\u7ea2\u8272 LED \u6307\u793a\u706f\u901a\u8baf\u63a5\u53e3\u9694\u79bb RS485\n\n\u901a\u4fe1\u534f\u8bae\u6807\u51c6\u7684 Modbus RTU \u6ce2\u7279\u73871200 \uff0c2400 \uff0c4800 \uff0c9600 (\u9ed8\u8ba4)\uff0c  19200 \uff0c38400\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u4fee\u6539\u9ed8\u8ba4\u901a\u8baf\u683c\u5f0f9600 \uff0cn \uff0c8 \uff0c1 \u8bbe\u5907\u5730\u57400-255 \uff0c5 \u4f4d\u5730\u5740\u62e8\u7801\u5f00\u5173\u53ef\u4ee5\u8bbe\u7f6e 1-31 \u5730\u5740\u7801\uff0c\u5927\u4e8e 31 \u7684\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u8bbe\u7f6e\uff1bIO \u63a5\u53e34 \u8def DI (\u5149\u8026\u9694\u79bb)\uff1b  4 \u8def DO (\u5e38\u5f00\u5e38\u95ed\uff0c\u8f93\u51fa\u7aef\u89e6\u70b9\u9694\u79bb)\u8f93\u51fa\u89e6\u70b9\u5bb9\u91cf10A\/30VDC \u6216 10A\/250VAC\u8010\u4e45\u602710 \u4e07\u6b21\u8f93\u51fa\u6307\u793a\u5177\u5907 4 \u8def\u7ea2\u8272 LED \u6307\u793a\u706f\u8bbe\u5907\u5c3a\u5bf8115*90*40mm\u91cd\u91cf\u7ea6 330g\u5de5\u4f5c\u6e29\u5ea6\u5de5\u4e1a\u7ea7\uff0c-40\u00b0C~70\u00b0C\u5de5\u4f5c\u6e7f\u5ea65~85% RH \u4ea7\u54c1\u529f\u80fd\u95ea\u5f00\u95ea\u95ed\u3001\u7535\u8111\u4e0a\u4f4d\u673a\u63a7\u5236\u3001\u672c\u673a\u975e\u9501\u8054\u52a8\u3001\u672c\u673a\u81ea\u9501\u8054\u52a8\u3001\u53cc\u673a\u975e\u9501\u8054\u52a8 \u3001\u53cc\u673a\u81ea\u9501\u8054\u52a8\u3001\u672c\u673a\u4e92\u9501\u6a21\u5f0f  \u8f6f\u4ef6\u652f\u6301\u5de5\u4f5c\u6a21\u5f0f\u66f4\u6539\uff1b\u7ee7\u7535\u5668\u72ec\u7acb\u63a7\u5236\uff1b\u5f00\u5173\u91cf\u72b6\u6001\u67e5\u8be2\uff1b\u7ee7\u7535\u5668\u6574\u4f53\u63a7\u5236\uff1b\u8c03\u8bd5\u4fe1\u606f\u67e5\u8be2\uff1b\u63a7\u5236\u8f6f\u4ef6\uff1b\u652f\u6301\u5404\u5bb6\u7ec4\u6001\u8f6f\u4ef6\uff1b\u652f\u6301  Labview \u7b49\u5361\u8f68\u5b89\u88c5\u6807\u51c6 DIN35mm \u5bfc\u8f68\u5b89\u88c5\n\n## 3. \u4ea7\u54c1\u5c3a\u5bf8\n\n\u4ea7\u54c1\u5c3a\u5bf8\u56fe\n\n## 4. \u901a\u4fe1\u534f\u8bae\u4e0e\u6570\u636e\u683c\u5f0f\n\n### 4.1. \u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4e0b\u8f7d\n\n\u300a\u90ce\u6c49\u5fb7 IO \u63a7\u5236\u5668\u914d\u7f6e\u5de5\u5177\u300b\n\n\u8f6f\u4ef6\u622a\u56fe\n\n### 4.2. \u8bbe\u5907\u901a\u4fe1\u914d\u7f6e\n\n#### 4.2.1. \u62e8\u7801\u5f00\u5173\u529f\u80fd\u4ecb\u7ecd\n\n\u8bbe\u5907\u5730\u5740  (\u4ece\u673a\u5730\u5740)  =\u62e8\u7801\u5730\u5740+\u8f6f\u4ef6\u5730\u5740\n\n\u4f8b\u5982\uff1a\u82e5\u62e8\u7801\u5730\u5740\u8bbe\u7f6e\u4e3a 11\uff0c\u8f6f\u4ef6\u5730\u5740\u8bbe\u7f6e\u4e3a 110\uff0c\u5219\u8bbe\u5907\u5730\u5740\u4e3a 121\u3002\u66f4\u6539\u5730\u5740\n\n\u540e\u9700\u65ad\u7535\u91cd\u542f\u65b9\u53ef\u751f\u6548\u3002\n\n5 \u4f4d\u62e8\u7801\u5f00\u5173\n\n\u8bbe\u5907\u5177\u5907\u62e8\u7801\u5f00\u5173\u65b9\u4fbf\u7528\u6237\u5feb\u901f\u4fee\u6539\u8bbe\u5907\u5730\u5740\u3002\n\n( 1 )   \u4e94\u4e2a\u62e8\u7801\u5168\u90fd\u62e8\u5230\u4e0a\u9762\u65f6\uff0c\u4e3a\u5730\u5740\u201c31\u201d\uff1b\n\n(2)   \u4e94\u4e2a\u62e8\u7801\u5168\u90fd\u62e8\u5230\u4e0b\u9762\u65f6\uff0c\u4e3a\u5730\u5740\u201c0\u201d\uff1b\n\n(3)   \u6700\u5de6\u8fb9 1 \u4e3a\u4e8c\u8fdb\u5236\u6700\u4f4e\u4f4d\uff1b\n\n(4)   \u62e8\u7801\u5730\u5740\u8868\uff1a\n\n\u62e8\u7801\u5f00\u5173\u5730\u5740\n\n#### 4.2.2. \u8f6f\u4ef6\u5730\u5740\u7684\u8bbe\u5b9a\u4e0e\u8bfb\u53d6\n\n\u70b9\u51fb\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4e0b\u65b9\u8f6f\u4ef6\u5730\u5740\u540e\u8fb9\u7684\u201c\u8bfb\u53d6\u201d\u6216\u201c\u8bbe\u7f6e\u201d\u6765\u5bf9\u8bbe\u5907\u7684\u8f6f\u4ef6\u5730\u5740\u8fdb\u884c \u8bfb\u53d6\u6216\u8bbe\u7f6e\u3002\n\n\u8f6f\u4ef6\u5730\u5740\u8bbe\u7f6e\n\n\u8bbe\u5907\u5730\u5740\n\n#### 4.2.3. \u6ce2\u7279\u7387\u7684\u8bbe\u5b9a\u4e0e\u8bfb\u53d6\n\n\u70b9\u51fb\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u6ce2\u7279\u7387\u8bbe\u7f6e\u680f\u7684\u201c\u8bfb\u53d6\u201d\u548c\u201c\u8bbe\u7f6e\u201d\u5c31\u53ef\u4ee5\u5206\u522b\u8bfb\u53d6\u548c\u8bbe\u7f6e\u6ce2\u7279\u7387\n\n\u548c\u5730\u5740\uff0c\u64cd\u4f5c\u540e\u9700\u8981\u91cd\u542f\u8bbe\u5907\u548c\u4fee\u6539\u7535\u8111\u4e32\u53e3\u8bbe\u7f6e\u3002\n\n\u6ce2\u7279\u7387\u8bbe\u7f6e\n\n### 4.3. \u901a\u4fe1\u534f\u8bae\u8bf4\u660e\n\n\u672c\u4ea7\u54c1\u652f\u6301\u6807\u51c6 Modbus \u6307\u4ee4\uff0c\u6709\u5173\u8be6\u7ec6\u7684\u6307\u4ee4\u751f\u6210\u4e0e\u89e3\u6790\u65b9\u5f0f\uff0c\u53ef\u6839\u636e\u672c\u6587\u4e2d\u7684\n\n\u5bc4\u5b58\u5668\u8868\u7ed3\u5408\u53c2\u8003\u300aModbus \u534f\u8bae\u4e2d\u6587\u7248\u300b\u5373\u53ef\u3002\u672c\u4ea7\u54c1\u652f\u6301 Modbus-RTU \u683c\u5f0f\u3002\n\n#### 4.3.1. Modbus \u5bc4\u5b58\u5668\u8bf4\u660e\n\n\u7ebf\u5708\u5bc4\u5b58\u5668\u5730\u5740\u8868\uff1a\n\n\u5bc4\u5b58\u5668\u540d\u79f0 PLC \u5bc4\u5b58\u5668\u5730\u5740\u8bf4\u660e\u7ebf\u5708\u63a7\u5236\u7ebf\u5708 1   \u5199\u7ebf\u5708   1 \u53f7\u6307\u4ee4\u780100001\u7b2c 1 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u7ebf\u5708 200002\u7b2c 2 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u7ebf\u5708 300003\u7b2c 3 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u7ebf\u5708 400004\u7b2c 4 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u79bb\u6563\u91cf\u8f93\u5165\u8f93\u5165 1   \u5f00\u5173\u91cf 2 \u53f7\u6307\u4ee410001\u7b2c 1 \u8def\u8f93\u5165\u8f93\u5165 210002\u7b2c 2 \u8def\u8f93\u5165\u8f93\u5165 310003\u7b2c 3 \u8def\u8f93\u5165\u8f93\u5165 410004\u7b2c 4 \u8def\u8f93\u5165\n\n\u914d\u7f6e\u53c2\u6570\n\n \u5bc4\u5b58\u5668\u540d\u79f0Modbus\u5bc4\u5b58\u5668\u5730\u5740PLC \u5bc4\u5b58\u5668\u5730\u5740 \u8bf4\u660e \u901a\u4fe1\u6ce2\u7279\u7387     \u4fdd\u6301\u5bc4 \u5b58\u5668 03E8H 41001\u89c1\u4e0b\u8868\u6ce2\u7279\u7387\u6570\u503c\u5bf9\u5e94\u8868\uff0c\u9ed8\u8ba4\u4e3a 0\uff0c\u652f\u6301 0-5\uff0c\u8be5\u5bc4\u5b58\u5668\u540c\u65f6\u51b3\u5b9a RS232 \u548c RS485 \u7684\u901a\u4fe1\u6ce2\u7279\u7387\u5907\u752803E9H41002\u5907\u7528\uff0c\u7528\u6237\u4e0d\u53ef\u5199\u4efb\u4f55\u503c \u504f\u79fb\u5730\u5740 03EAH 41003\u8bbe\u5907\u5730\u5740=\u504f\u79fb\u5730\u5740+\u62e8\u7801\u5f00\u5173\u5730\u5740\u5de5\u4f5c\u6a21\u5f0f03EBH41004\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\uff0c\u5b58\u50a8\u7528\u6237\u6570\u636e\n\n\u5907\u6ce8\uff1a\n\n( 1 )   Modbus \u8bbe\u5907\u6307\u4ee4\u652f\u6301\u4e0b\u5217 Modbus \u5730\u5740\uff1a\n\n00001 \u81f3 09999 \u662f\u79bb\u6563\u8f93\u51fa(\u7ebf\u5708)\n\n10001 \u81f3 19999 \u662f\u79bb\u6563\u8f93\u5165(\u89e6\u70b9)\n\n30001 \u81f3 39999 \u662f\u8f93\u5165\u5bc4\u5b58\u5668(\u901a\u5e38\u662f\u6a21\u62df\u91cf\u8f93\u5165)\n\n40001 \u81f3 49999 \u662f\u4fdd\u6301\u5bc4\u5b58\u5668(\u901a\u5e38\u5b58\u50a8\u8bbe\u5907\u914d\u7f6e\u4fe1\u606f)\n\n\u91c7\u7528 5 \u4f4d\u7801\u683c\u5f0f\uff0c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u51b3\u5b9a\u5bc4\u5b58\u5668\u7c7b\u578b\uff0c\u5176\u4f59 4 \u4e2a\u5b57\u7b26\u4ee3\u8868\u5730\u5740\u3002\u5730\u5740 1 \u4ece 0 \u5f00\u59cb\uff0c\u5982 00001 \u5bf9\u5e94 0000\u3002\n\n(2)   \u6ce2\u7279\u7387\u6570\u503c\u5bf9\u5e94\u8868\n\n\u6570\u503c\u6ce2\u7279\u738709600124002480039600419200538400\n\n(3)   \u7ee7\u7535\u5668\u72b6\u6001\uff0c\u901a\u8fc7 00001\u5730\u5740\u6765\u67e5\u8be2\u7ee7\u7535\u5668\u72b6\u6001\u548c\u63a7\u5236\uff1b\n\n\u5f00\u5173\u91cf\u72b6\u6001\uff0c\u901a\u8fc7 10002 \u5730\u5740\u6765\u67e5\u8be2\u5f00\u5173\u91cf\u72b6\u6001\u3002\n\n\u5bc4\u5b58\u5668\u5730\u5740\u6309\u7167 PLC \u547d\u540d\u89c4\u5219\uff0c\u771f\u5b9e\u5730\u5740\u4e3a\u53bb\u6389\u6700\u9ad8\u4f4d\uff0c\u7136\u540e\u51cf\u4e00\u3002\n\n#### 4.3.2. \u6307\u4ee4\u5217\u8868\n\n\u6307\u4ee4\u540d\u79f0RTU \u683c\u5f0f(16 \u8fdb\u5236)\u67e5\u8be2\u56db\u8def\u72b6\u6001FE 01 00 00 00 04 29 C6\n\n\u67e5\u8be2\u6307\u4ee4\u8fd4\u56de\u4fe1\u606fFE 01 01 00 61 9C\u63a7\u5236\u7b2c 1 \u8def\u5f00FE 05 00 00 FF 00 98 35\u63a7\u5236\u8fd4\u56de\u4fe1\u606fFE 05 00 00 FF 00 98 35\u63a7\u5236\u7b2c 1 \u8def\u5173FE 05 00 00 00 00 D9 C5\u63a7\u5236\u8fd4\u56de\u4fe1\u606fFE 05 00 00 00 00 D9 C5\u63a7\u5236\u7b2c 2 \u8def\u5f00FE 05 00 01 FF 00 C9 F5\u63a7\u5236\u7b2c 2 \u8def\u5173FE 05 00 01 00 00 88 05\u63a7\u5236\u7b2c 3 \u8def\u5f00FE 05 00 02 FF 00 39 F5\u63a7\u5236\u7b2c 3 \u8def\u5173FE 05 00 02 00 00 78 05\u63a7\u5236\u7b2c 4 \u8def\u5f00FE 05 00 03 FF 00 68 35\u63a7\u5236\u7b2c 4 \u8def\u5173FE 05 00 03 00 00 29 C5\u8bfb\u7b2c 1 \u8def\u5149\u8026FE 02 00 00 00 01 AD C5\u8fd4\u56de\u4fe1\u606fFE 02 01 00 91 9C\u8bfb\u7b2c 2 \u8def\u5149\u8026FE 02 00 01 00 01 FC 05\u8bfb\u7b2c 3 \u8def\u5149\u8026FE 02 00 02 00 01 0C 05\u8bfb\u7b2c 4 \u8def\u5149\u8026FE 02 00 03 00 01 5D C5\n\n4.3.3. \u6307\u4ee4\u8be6\u89e3\n\n4.3.3.1.\u7ee7\u7535\u5668\u8f93\u51fa\n\n\u63a7\u5236 1 \u8def\u7ee7\u7535\u5668(\u4ee5\u7b2c 1 \u8def\u95ed\u5408\u4e3a\u4f8b\uff0c\u5176\u4ed6\u901a\u9053\u53c2\u7167\u672c\u4f8b)\n\n\u53d1\u9001\u7801 \uff1aFE 05 00 00 FF 00 98 35\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8\n\nFE\u8bbe\u5907\u5730\u5740\u8fd9\u91cc\u4e3a\u5e7f\u64ad\u5730\u57400505 \u6307\u4ee4\u5355\u4e2a\u63a7\u5236\u6307\u4ee400 00\u5730\u5740\u8981\u63a7\u5236\u7ee7\u7535\u5668\u5bc4\u5b58\u5668\u5730\u5740FF 00\u6307\u4ee4\u7ee7\u7535\u5668\u95ed\u5408\u7684\u52a8\u4f5c98 35CRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n\u7ee7\u7535\u5668\u6a21\u5757\u8fd4\u56de\u4fe1\u606f\uff1a\n\n\u8fd4\u56de\u7801 \uff1aFE 05 00 00 FF 00 98 35\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740\u8fd9\u91cc\u4e3a\u5e7f\u64ad\u5730\u57400505 \u6307\u4ee4\u5355\u4e2a\u63a7\u5236\u6307\u4ee400 00\u5730\u5740\u8981\u63a7\u5236\u7ee7\u7535\u5668\u5bc4\u5b58\u5668\u5730\u5740FF 00\u6307\u4ee4\u7ee7\u7535\u5668\u95ed\u5408\u7684\u52a8\u4f5c98 35CRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n4.3.3.2.\u7ee7\u7535\u5668\u72b6\u6001\n\n\u7ee7\u7535\u5668\u67e5\u8be2\n\n\u53d1\u9001\u6307\u4ee4\u7801 \uff1aFE 01 00 00 00 04 29 C6\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740\u8fd9\u91cc\u4e3a\u5e7f\u64ad\u5730\u57400101 \u6307\u4ee4\u67e5\u8be2\u7ee7\u7535\u5668\u72b6\u6001\u6307\u4ee400 00\u8d77\u59cb\u5730\u5740\u8981\u67e5\u8be2\u7684\u7b2c\u4e00\u4e2a\u7ee7\u7535\u5668\u5bc4\u5b58\u5668\u5730\u574000 04\u67e5\u8be2\u6570\u91cf\u8981\u67e5\u8be2\u7684\u7ee7\u7535\u5668\u6570\u91cf29 C6CRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n\u7ee7\u7535\u5668\u8fd4\u56de\u4fe1\u606f\uff1a\n\n\u8fd4\u56de\u7801 \uff1aFE 01 01 00 61 9C\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 0101 \u6307\u4ee4\u8fd4\u56de\u6307\u4ee4\u3002\u5982\u679c\u67e5\u8be2\u9519\u8bef\uff0c\u8fd4\u56de 0x8101\u5b57\u8282\u6570\u8fd4\u56de\u72b6\u6001\u4fe1\u606f\u7684\u6240\u6709\u5b57\u8282\u6570\u3002  1+(n-1)\/8    00    \u67e5\u8be2\u7684\u72b6\u6001\u8fd4\u56de\u503c\u4e3a 16 \u8fdb\u5236\uff0c\u8f6c\u6362\u6210 2 \u8fdb\u5236\u6570\u636e\uff0c0 \u8868\u793a\u5173\uff0c 1 \u8868\u793a\u5f00\u3002\u4f8b\uff1a\u5bf9 4 \u8def\u7ee7\u7535\u5668\u82e5\u8fd4 \u56de\u5b57\u6bb5\u4e3a 08\uff0c\u8f6c\u6362\u6210 2 \u8fdb\u5236\u540e\u4f4d 1000\uff0c\u5219\u7b2c 1 \u30012 \u30013 \u8def\u5173\uff0c\u7b2c 4 \u8def\u5f00\u300261 9CCRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n4.3.3.3.\u5149\u8026\u8f93\u5165\n\n\u67e5\u8be2\u5149\u8026\n\n\u53d1\u9001\u6307\u4ee4\u7801 \uff1aFE 02 00 00 00 04 6D C6\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 0202 \u6307\u4ee4\u67e5\u8be2\u79bb\u6563\u91cf\u8f93\u5165 (\u5149\u8026\u8f93\u5165)  \u72b6\u6001\u6307\u4ee400 00\u8d77\u59cb\u5730\u5740\u8981\u67e5\u8be2\u7684\u7b2c\u4e00\u4e2a\u5149\u8026\u7684\u5bc4\u5b58\u5668\u5730\u574000 04\u67e5\u8be2\u6570\u91cf\u8981\u67e5\u8be2\u7684\u5149\u8026\u72b6\u6001\u6570\u91cf6D C6CRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n\u5149\u8026\u8fd4\u56de\u4fe1\u606f\uff1a\n\n\u8fd4\u56de\u7801 \uff1aFE 02 01 00 91 9C\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 0202 \u6307\u4ee4\u8fd4\u56de\u6307\u4ee4\u3002\u5982\u679c\u67e5\u8be2\u9519\u8bef\uff0c\u8fd4\u56de 0x8201\u5b57\u8282\u6570\u8fd4\u56de\u72b6\u6001\u4fe1\u606f\u7684\u6240\u6709\u5b57\u8282\u6570\u3002     00     \u67e5\u8be2\u7684\u72b6\u6001\u8fd4\u56de\u7684\u5149\u8026\u72b6\u6001\u3002Bit0\uff1a\u7b2c\u4e00\u4e2a\u5149\u8026\u72b6\u6001Bit1\uff1a\u7b2c\u4e8c\u4e2a\u5149\u8026\u72b6\u6001 \u2026\u2026Bit7\uff1a\u7b2c\u516b\u4e2a\u5149\u8026\u72b6\u6001919CCRC 16\u524d 6 \u5b57\u8282\u6570\u636e\u7684 CRC 16 \u6821\u9a8c\u548c\n\n4.3.3.4.\u95ea\u5f00\u95ea\u95ed\u6307\u4ee4\n\n\u95ea\u95ed\u53d1\u9001\u7801 \uff1aFE 10 00 03 00 02 04 00 04 00 0A 41 6B\n\n\u95ea\u5f00\u53d1\u9001\u7801 \uff1aFE 10 00 03 00 02 04 00 02 00 0A A1 6A\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u574016 \u8fdb\u5236\uff0c\u4ee3\u8868 10 \u8fdb\u5236254 \u5e7f\u64ad\u5730\u57401010 \u6307\u4ee4\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u529f\u80fd\u7801 00 03 \u7ee7\u7535\u5668\u5730\u57403+5(n-1) \uff0cn \u4ee3\u8868\u63a7\u5236\u7b2c\u51e0\u4e2a\u901a\u9053\uff0c10 \u8fdb\u5236\u9700\u6362\u7b97\u4e3a 16 \u8fdb\u5236 00 02 \u63a7\u5236\u6307\u4ee4\u6570\u91cf2+5(n-1)\uff0cn \u4ee3\u8868\u63a7\u5236\u7684\u901a\u9053\u6570\u91cf\uff0c\u4ec5\u652f\u6301\u5355\u72ec\u63a7\u5236\u4e00\u4e2a\u901a\u9053\u7684\u5ef6\u65f6\u52a8\u4f5c 04 \u63a7\u5236\u5185\u5bb9\u5b57\u8282\u957f\u5ea64+10(n-1)\uff0cn \u4ee3\u8868\u63a7\u5236\u7684\u901a\u9053\u6570\u91cf\uff0c\u4ec5\u652f\u6301\u5355\u72ec\u63a7\u5236\u4e00\u4e2a\u901a\u9053\u7684\u5ef6\u65f6\u52a8\u4f5c\n\n00 04 \u6216 00 02\u6307\u4ee400 04 \u4e3a\u95ea\u95ed\u6307\u4ee4 00 02 \u4e3a\u95ea\u5f00\u6307\u4ee4 00 0A \u95ea\u5f00\u65f6\u95f400 0A \u4e3a\u5341\u516d\u8fdb\u5236\u6362\u4e3a\u5341\u8fdb\u5236\u5219\u4e3a 10 \u95f4\u9694\u65f6\u95f4\u4e3a(0.1 \u79d2*10)41 6B \u6216 A1 6ACRC 16\u6821\u9a8c\u4f4d\n\n\u8fd4\u56de\u7801\uff1aFE 10 00 03 00 02 A5 C7\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 1010 \u6307\u4ee4\u8fd4\u56de\u6307\u4ee4\u3002\u5982\u679c\u67e5\u8be2\u9519\u8bef\uff0c\u8fd4\u56de 0x8200 03\u8bbe\u5907\u5730\u5740\u67e5\u8be2\u8bbe\u5907\u7684\u5730\u574000 02\u63a5\u53d7\u6307\u4ee4\u6570\u8bbe\u5907\u63a5\u53d7\u7684\u6307\u4ee4\u4e2a\u6570A5 C7CRC 16\u6821\u9a8c\u4f4d\n\n\u4e3e\u4f8b\uff1a  1s \u65f6\u95f4\u95ed\/\u65ad\n\n1 \u901a\u9053\u95ea\u95ed FE 10 00 03 00 02 04 00 04 00 0A 41 6B\n\n2 \u901a\u9053\u95ea\u95ed FE 10 00 08 00 02 04 00 04 00 0A 00 D8\n\n3 \u901a\u9053\u95ea\u95ed FE 10 00 0D 00 02 04 00 04 00 0A C0 E7\n\n4 \u901a\u9053\u95ea\u95ed FE 10 00 12 00 02 04 00 04 00 0A 81 AB\n\n1 \u901a\u9053\u95ea\u5f00 FE 10 00 03 00 02 04 00 02 00 0A A1 6A\n\n2 \u901a\u9053\u95ea\u5f00 FE 10 00 08 00 02 04 00 02 00 0A E0 D9\n\n3 \u901a\u9053\u95ea\u5f00 FE 10 00 0D 00 02 04 00 02 00 0A 20 E6\n\n4 \u901a\u9053\u95ea\u5f00 FE 10 00 12 00 02 04 00 02 00 0A 61 AA\n\n4.3.3.5.\u5168\u5f00\u5168\u5173\u6307\u4ee4\n\n\u5168\u5f00\u53d1\u9001\u7801\uff1aFE 0F 00 00 00 04 01 FF 31 D2\n\n\u5168\u65ad\u53d1\u9001\u7801\uff1aFE 0F 00 00 00 04 01 00 71 92\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 0F0F \u6307\u4ee4\u8fd4\u56de\u6307\u4ee4\u3002\u5982\u679c\u67e5\u8be2\u9519\u8bef\uff0c\u8fd4\u56de 0x8200 00\u8d77\u59cb\u5730\u5740 00 04\u63a7\u5236\u6570\u91cf\u63a7\u5236\u7684\u7ee7\u7535\u5668\u6570\u91cf01\u5b57\u8282\u6570\u53d1\u9001\u6307\u4ee4\u5b57\u8282\u6570FF (\u6216 00)\u5168\u5f00(\u5168\u5173)  \u6307\u4ee4FF \u5168\u5f00\u6307\u4ee4\uff1b  00 \u5168\u5173\u6307\u4ee431 D2 (\u6216 71 92)CRC 16\u6821\u9a8c\u4f4d\n\n\u5168\u65ad\u5168\u5f00\u8fd4\u56de\u7801\uff1aFE 0F 00 00 00 04 40 07\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce8FE\u8bbe\u5907\u5730\u5740 0F0F \u6307\u4ee4\u8fd4\u56de\u6307\u4ee4\u3002\u5982\u679c\u67e5\u8be2\u9519\u8bef\uff0c\u8fd4\u56de 0x8200 00\u8d77\u59cb\u5730\u5740 00 04\u6570\u91cf\u8fd4\u56de\u4fe1\u606f\u7684\u7ee7\u7535\u5668\u6570\u91cf40 07CRC 16\u6821\u9a8c\u4f4d\n\n4.4. \u4e3b\u52a8\u4e0a\u62a5\u534f\u8bae\n\n\u672c\u529f\u80fd\u4e3a\u975e\u6807\u51c6 Modbus \u534f\u8bae\uff0c\u4ec5\u5728\u53cc\u673a\u6a21\u5f0f\u4e0b\u624d\u53ef\u4f7f\u7528\uff0c\u9002\u7528\u4e8e\u4e32\u53e3\u7ee7\u7535\u5668\u4e3b\u52a8 \u4e0a\u62a5\u53d8\u5316\u7684\u5f00\u5173\u91cf\u3002\n\n\u5b57\u6bb5\u542b\u4e49\u5907\u6ce80x40 0x57\u5305\u5934 0x01\u8bbe\u5907\u5730\u5740 0x02IO \u72b6\u6001\u4f4e\u516b\u4f4d 0x00IO \u72b6\u6001\u9ad8\u516b\u4f4d  0x42+0x01+0x02+0x00 \u6821\u9a8c\u4f4d0x42+\u8bbe\u5907\u5730\u5740+IO \u72b6\u6001\u4f4e\u516b\u4f4d+IO \u72b6\u6001\u9ad8\u516b\u4f4d\n\n5.  \u7535\u6c14\u63a5\u7ebf\n\n5.1. \u4ea7\u54c1\u4f7f\u7528\u62d3\u6251\u56fe\n\n5.2. \u4ea7\u54c1\u63a5\u7ebf\u7aef\u5b50\u5b9a\u4e49\n\n\u4ea7\u54c1\u63a5\u7ebf\u7aef\u5b50\u5b9a\u4e49\n\n\u5e8f\u53f7\u5f15\u811a\u8bf4\u660e1+\u7535\u6e90\u6b63\u67812 -\u7535\u6e90\u8d1f\u67813A+RS485 A+4-RS485 B-5VIN\u65e0\u6e90\u8f93\u5165\u65f6 VIN \u548c COM+\u77ed\u63a5\u7528\uff0c\u5177\u4f53\u67e5\u770b\u8f93\u5165\u63a5\u7ebf\u56fe6COM+\u65e0\u6e90\u8f93\u5165\u65f6 VIN \u548c COM+\u77ed\u63a5\u7528\uff0c\u5177\u4f53\u67e5\u770b\u8f93\u5165\u63a5\u7ebf\u56fe7IN1\u7b2c 1 \u8def\u5f00\u5173\u91cf\u8f93\u51658IN2\u7b2c 2 \u8def\u5f00\u5173\u91cf\u8f93\u51659IN3\u7b2c 3 \u8def\u5f00\u5173\u91cf\u8f93\u516510IN4\u7b2c 4 \u8def\u5f00\u5173\u91cf\u8f93\u516511COM-\u65e0\u6e90\u8f93\u5165\u65f6\u4f7f\u7528\uff0c\u5177\u4f53\u67e5\u770b\u8f93\u5165\u63a5\u7ebf\u56fe12\u5e38\u5f00\u7b2c 4 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u5f00\u7aef13\u516c\u5171\u7aef\u7b2c 4 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u516c\u5171\u7aef14\u5e38\u95ed\u7b2c 4 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u95ed\u7aef15\u5e38\u5f00\u7b2c 3 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u5f00\u7aef16\u516c\u5171\u7aef\u7b2c 3 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u516c\u5171\u7aef17\u5e38\u95ed\u7b2c 3 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u95ed\u7aef18\u5e38\u5f00\u7b2c 2 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u5f00\u7aef19\u516c\u5171\u7aef\u7b2c 2 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u516c\u5171\u7aef\n\n20\u5e38\u95ed\u7b2c 2 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u95ed\u7aef21\u5e38\u5f00\u7b2c 1 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u5f00\u7aef22\u516c\u5171\u7aef\u7b2c 1 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u516c\u5171\u7aef23\u5e38\u95ed\u7b2c 1 \u8def\u7ee7\u7535\u5668\u8f93\u51fa\u5e38\u95ed\u7aef\n\n5.3. \u4ea7\u54c1\u8f93\u5165\u63a5\u7ebf\u56fe\n\n5.4. \u4ea7\u54c1\u8f93\u51fa\u63a5\u7ebf\u56fe\n\n6. \u4ea7\u54c1\u7ef4\u62a4\u4fdd\u517b\n\n6.1. \u8bbe\u5907\u4f7f\u7528\u73af\u5883\n\n-  \u8bbe\u5907\u5de5\u4f5c\u7535\u538b\u4e3a 9~28V\uff0c\u8f93\u5165\u7535\u538b\u8fc7\u9ad8\u6216\u8fc7\u4f4e\u53ef\u80fd\u5bfc\u81f4\u8bbe\u5907\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u751a\u81f3\n\n\u635f\u574f\u3002\n\n2.  \u8bbe\u5907 DI \u8f93\u5165\u91cf\u7aef\u5b50\u91c7\u7528\u5149\u8026\u9694\u79bb\u4fdd\u62a4\uff0c\u627f\u8f7d\u7535\u538b\u4e3a 5 ~ 24V\u3002\n\n3.  \u8bbe\u5907 DO \u8f93\u51fa\u7aef\u5b50\u4e25\u7981\u8d85\u8d1f\u8377\u4f7f\u7528\uff0c\u8bf7\u5728\u5141\u8bb8\u7684\u8303\u56f4\u5185\u6b63\u786e\u63a5\u7ebf(\u8be6\u60c5\u89c1\u63a5\u7ebf\u56fe)\u3002\n\n4.  \u8bbe\u5907\u5141\u8bb8\u7684\u7a7a\u6c14\u6e7f\u5ea6 5~85%RH\uff0c\u4e0d\u5177\u5907\u9632\u6c34\u80fd\u529b\u3002\u5728\u51dd\u9732\uff0c\u6216\u6db2\u4f53\u6d78\u6ce1\u73af\u5883\u8bf7\n\n\u52ff\u4f7f\u7528\u8be5\u4ea7\u54c1\u3002\n\n5.  \u7ee7\u7535\u5668\u662f\u5177\u6709\u4e00\u5b9a\u4f7f\u7528\u5bff\u547d\u7684\u5143\u5668\u4ef6\uff0c\u5f53\u8fbe\u5230\u7406\u8bba\u4f7f\u7528\u5bff\u547d\u8bf7\u53ca\u65f6\u66f4\u6362\u4ee5\u514d\u53d1\u751f\n\n\u5371\u9669\u3002\n\n6.2. \u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u529e\u6cd5\n\n( 1 )   232 \u901a\u8baf\uff0c\u8bbe\u5907\u63a7\u5236\u65e0\u54cd\u5e94\uff0c\u4e0d\u52a8\u4f5c\n\n\u8bbe\u5907\u4e0e\u4e0a\u4f4d\u673a\u8fdb\u884c\u901a\u4fe1\u4f7f\u7528\u7684\u662f 232 \u76f4\u8fde\u7ebf\u3002\u5373 RX \u5bf9 RX\uff0cTX \u5bf9 TX\uff0cGND \u5bf9GND\u3002  (2)   \u7ee7\u7535\u5668\u53ea\u80fd\u5f00\u4e0d\u80fd\u5173\n\n\u8bfb\u53d6\u5730\u5740\u662f\u5426\u8bfb\u5230\u7684\u662f\u5b9e\u9645\u8bbe\u5907\u5730\u5740\uff0c\u8c03\u8bd5\u4fe1\u606f\u680f\u5185\u662f\u5426\u6709\u8fd4\u56de\u6307\u4ee4\uff0c\u8fd4\u56de\u6307\u4ee4\u662f\u5426 \u6b63\u786e\uff0c\u5982\u679c\u8bfb\u53d6\u5730\u5740\u5931\u8d25\uff0c\u6ca1\u6709\u8fd4\u56de\u6307\u4ee4\u6216\u8fd4\u56de\u6307\u4ee4\u5f02\u5e38\uff0c\u68c0\u67e5\u901a\u8baf\u7ebf\u548c\u901a\u8baf\u8f6c\u6362\u5668\u3002\n\n(3)   \u7ee7\u7535\u5668\u677f\u5361\u4f9b\u7535\u540e\u4f7f\u7528 485 \u63a5\u53e3\u65e0\u6cd5\u5efa\u7acb\u901a\u4fe1\uff0c\u65e0\u6cd5\u63a7\u5236\u3002\n\n1.  485 \u7ebf\u662f\u5426\u63a5\u53cd \u3001\u7535\u538b\u662f\u5426\u5728\u89c4\u5b9a\u8303\u56f4\u5185\uff1b\n\n2.  \u8f6f\u4ef6\u4e0a\u8bbe\u5907\u5730\u5740\u586b\u5199 254\uff0c\u6d4b\u8bd5\u4e0d\u540c\u6ce2\u7279\u7387\u662f\u5426\u53ef\u4ee5\u63a7\u5236\u3002\n\n(4)   485 \u603b\u7ebf\u6302\u8f7d\u591a\u4e2a\u8bbe\u5907\uff0c\u4ee5\u5e7f\u64ad\u5730\u5740 254 \u53d1\u9001\u7ee7\u7535\u5668\u95ed\u5408\u64cd\u4f5c\u5931\u8d25\u3002\n\n\u5e7f\u64ad\u5730\u5740\u662f\u7528\u4e8e\u6d4b\u8bd5\u603b\u7ebf\u4e0a\u53ea\u6709\u4e00\u4e2a\u8bbe\u5907\u65f6\u4f7f\u7528\uff0c\u5927\u4e8e 1 \u4e2a\u8bbe\u5907\u65f6\u8bf7\u7528\u62e8\u7801\u5f00\u5173\u533a \u5206\u5730\u5740\u6765\u63a7\u5236\u6216\u901a\u8fc7\u8f6f\u4ef6\u8bbe\u7f6e\u5730\u5740(\u591a\u4e2a\u8bbe\u5907\u914d\u7f6e\u6210\u4e0d\u540c\u5730\u5740)\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u6240\u6709\u8bbe\u5907\u540c \u65f6\u5e94\u7b54\uff0c\u65e0\u6cd5\u6b63\u786e\u6267\u884c\u3002\n\n(5)   PLC \u4e0e\u8bbe\u5907\u4e0d\u80fd\u6b63\u5e38\u901a\u8baf\u3002\n\n1.  PLC \u901a\u8baf\u53c2\u6570\u662f\u5426\u4e0e\u672c\u7ee7\u7535\u5668\u8bbe\u5907\u5339\u914d\uff1b\n\n2.  PLC \u901a\u8baf\u534f\u8bae\u662f\u5426\u4e3a\u6807\u51c6\u7684 Modbus RTU\uff1b\n\n3.  \u897f\u95e8\u5b50 485 \u603b\u7ebf AB \u5b9a\u4e49\u4e0e\u672c\u8bbe\u5907\u76f8\u53cd\u3002\n\n(6)   \u5982\u4f55\u6062\u590d\u51fa\u5382\u8bbe\u7f6e\n\n\u5bf9\u4e8e\u5e26\u6709\u62e8\u7801\u5f00\u5173\u7684\u578b\u53f7\uff0c\u53ef\u4ee5\u5229\u7528\u62e8\u7801\u5f00\u5173\u6062\u590d\u51fa\u5382\u8bbe\u7f6e\uff0c\u64cd\u4f5c\u6b65\u9aa4\uff1a\u4e0a\u7535\u7684\u60c5\u51b5 \u4e0b\uff0c\u62e8\u7801\u5168\u90e8\u62e8\u5230 ON \u4e0a\uff0c  bit5 \u6765\u56de\u6ce2\u52a8 6 \u6b21(\u4e00\u6765\u4e00\u56de\u7b97\u4e00\u6b21)\uff0c  \u7136\u540e\u62e8\u7801\u5168\u90e8\u62e8\u4e0b\uff0c \u5373\u53ef\u7528\u4e0a\u4f4d\u673a\u8f6f\u4ef6 (\u6ce2\u7279\u7387 9600  \u3001\u5730\u5740 254)  \u901a\u8baf\n\n7. \u552e\u540e\u670d\u52a1\n\n7.1. \u552e\u540e\u670d\u52a1\u627f\u8bfa\n\n\u672c\u516c\u53f8\u63d0\u4f9b\u81ea\u9500\u552e\u65e5\u8d77\u4e00\u5e74\u5185\u7684\u672c\u673a\u552e\u540e\u670d\u52a1\uff0c\u4f46\u4e0d\u5305\u62ec\u4e0d\u5f53\u4f7f\u7528\u6240\u9020\u6210\u7684\u635f\u574f\uff0c\u82e5 \u9700\u8981\u7ef4\u4fee\u6216\u8c03\u6574\uff0c\u8bf7\u5bc4\u56de\uff0c\u4f46\u8fd0\u8d39\u9700\u81ea\u8d1f\u3002\u5bc4\u56de\u65f6\u9700\u786e\u5b9a\u5305\u88c5\u826f\u597d\u4ee5\u907f\u514d\u8fd0\u9001\u9014\u4e2d\u635f\u574f\uff0c \u672c\u516c\u53f8\u5c06\u514d\u8d39\u7ef4\u4fee\u4eea\u5668\u7684\u635f\u574f\u3002\n\n7.2. \u514d\u8d23\u58f0\u660e\n\n\u672c\u6587\u6863\u672a\u6388\u4e88\u4efb\u4f55\u77e5\u8bc6\u4ea7\u6743\u7684\u8bb8\u53ef\uff0c\u5e76\u672a\u4ee5\u660e\u793a\u6216\u6697\u793a\u3001\u6216\u4ee5\u7981\u6b62\u53d1\u8a00\u6216\u5176\u5b83\u65b9\u5f0f\u6388 \u4e88\u4efb\u4f55\u77e5\u8bc6\u4ea7\u6743\u8bb8\u53ef\u3002\u9664\u5728\u5176\u4ea7\u54c1\u7684\u9500\u552e\u6761\u6b3e\u548c\u6761\u4ef6\u58f0\u660e\u7684\u8d23\u4efb\u4e4b\u5916\uff0c\u6211\u516c\u53f8\u6982\u4e0d\u627f\u62c5\u4efb \u4f55\u5176\u5b83\u8d23\u4efb\u3002\u5e76\u4e14\u6211\u516c\u53f8\u5bf9\u672c\u4ea7\u54c1\u7684\u9500\u552e\u548c\/\u6216\u4f7f\u7528\u4e0d\u4f5c\u4efb\u4f55\u660e\u793a\u6216\u6697\u793a\u7684\u62c5\u4fdd\uff0c\u5305\u62ec\u5bf9 \u4ea7\u54c1\u7684\u7279\u5b9a\u7528\u9014\u9002\u7528\u6027\u3001\u9002\u9500\u6027\u6216\u5bf9\u4efb\u4f55\u4e13\u5229\u6743\u3001\u7248\u6743\u6216\u5176\u5b83\u77e5\u8bc6\u4ea7\u6743\u7684\u4fb5\u6743\u8d23\u4efb\u7b49\u5747\u4e0d \u4f5c\u62c5\u4fdd\u3002\u672c\u516c\u53f8\u53ef\u80fd\u968f\u65f6\u5bf9\u4ea7\u54c1\u89c4\u683c\u53ca\u4ea7\u54c1\u63cf\u8ff0\u505a\u51fa\u4fee\u6539\uff0c\u6055\u4e0d\u53e6\u884c\u901a\u77e5\u3002\n\n7.3. \u8054\u7cfb\u65b9\u5f0f\n\n\u5730\u5740\uff1a  \u5317\u4eac\u5e02\u5927\u5174\u533a\u5929\u5bab\u9662\u8857\u9053\u9ec4\u5f90\u8def25\u53f7\u65af\u51ef\u521b\u610f\u5927\u53a6218\u53f7\n\n\u7f51\u5740\uff1a www.modbus.cn\n\n\u90ae\u7bb1\uff1a  cloud@modbus.cn\n\n---\n*modbus.cn*\n"