{"id":5581,"date":"2025-01-22T16:53:47","date_gmt":"2025-01-22T08:53:47","guid":{"rendered":"https:\/\/nullthought.net\/?p=5581"},"modified":"2025-01-22T16:55:16","modified_gmt":"2025-01-22T08:55:16","slug":"%e6%b5%85%e8%b0%88modbus%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=5581","title":{"rendered":"\u6d45\u8c08Modbus\u534f\u8bae"},"content":{"rendered":"\n<h4 class=\"wp-block-heading has-text-align-center\">Modbus\u534f\u8bae\u4ecb\u7ecd<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u662f\u4e00\u79cd<strong>\u5e94\u7528\u5c42\u901a\u4fe1\u534f\u8bae<\/strong>\uff0c\u6700\u521d\u7531Modicon\uff08\u73b0\u4e3a\u65bd\u8010\u5fb7\u7535\u6c14\u7684\u4e00\u90e8\u5206\uff09\u57281979\u5e74\u5f00\u53d1\uff0c\u8bbe\u8ba1\u7528\u4e8e<strong>\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668\uff08PLC\uff09\u4e4b\u95f4\u7684\u901a\u4fe1<\/strong>\u3002\u5b83\u662f\u4e00\u79cd\u5de5\u4e1a\u6807\u51c6\u534f\u8bae\uff0c\u652f\u6301\u591a\u79cd\u901a\u4fe1\u65b9\u5f0f\uff0c\u5982\u4e32\u884c\u901a\u4fe1\uff08RS-232\/RS-485\uff09\u548c\u4ee5\u592a\u7f51\u901a\u4fe1\uff08Modbus TCP\/IP\uff09\u3002\u4ee5\u4e0b\u662f\u5bf9Modbus\u534f\u8bae\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e00\u3001Modbus\u534f\u8bae\u57fa\u672c\u6982\u5ff5<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u901a\u4fe1\u6a21\u5f0f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u4e3b\u4ece\u6a21\u5f0f<\/strong>\uff08Master-Slave\uff09\uff1a\u5355\u4e2a\u4e3b\u673a\uff08Master\uff09\u53ef\u4ee5\u4e0e\u591a\u4e2a\u4ece\u8bbe\u5907\uff08Slave\uff09\u901a\u4fe1\u3002<\/li>\n\n\n\n<li><strong>\u8bf7\u6c42-\u54cd\u5e94\u6a21\u5f0f<\/strong>\uff1a\u4e3b\u8bbe\u5907\u53d1\u9001\u8bf7\u6c42\uff0c\u4ece\u8bbe\u5907\u8fd4\u56de\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u636e\u8868\u793a<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u4ee5<strong>\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41<\/strong>\u7684\u5f62\u5f0f\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u4ee5\u4e0b\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5355\u4f4d\u6570\u503c\uff1a16\u4f4d\u5bc4\u5b58\u5668\uff08\u901a\u5e38\u4e3a\u65e0\u7b26\u53f7\u6574\u578b\uff09\u3002<\/li>\n\n\n\n<li>\u5e03\u5c14\u503c\uff1a\u5355\u4e2a\u4f4d\u3002<\/li>\n\n\n\n<li>\u6269\u5c55\u6570\u636e\uff1a\u901a\u8fc7\u591a\u4e2a\u5bc4\u5b58\u5668\u7ec4\u5408\u5b9e\u73b0\u6d6e\u70b9\u6570\u3001\u957f\u6574\u578b\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5730\u5740\u8303\u56f4<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u4e2a\u4ece\u8bbe\u5907\u6709\u4e00\u4e2a\u552f\u4e00\u5730\u5740\uff08\u901a\u5e38\u4e3a1-247\uff09\u3002<\/li>\n\n\n\n<li>\u4e3b\u673a\u901a\u8fc7\u4ece\u8bbe\u5907\u5730\u5740\u5b9a\u4f4d\u901a\u4fe1\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e8c\u3001Modbus\u534f\u8bae\u7684\u529f\u80fd\u7801\uff08Function Codes\uff09<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u901a\u8fc7\u529f\u80fd\u7801\u6307\u5b9a\u64cd\u4f5c\u7c7b\u578b\uff0c\u5e38\u89c1\u529f\u80fd\u7801\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8bfb\u64cd\u4f5c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>01<\/code>\uff1a\u8bfb\u53d6\u7ebf\u5708\uff08Coils\uff09\u72b6\u6001\u3002<\/li>\n\n\n\n<li><code>02<\/code>\uff1a\u8bfb\u53d6\u79bb\u6563\u8f93\u5165\uff08Discrete Inputs\uff09\u72b6\u6001\u3002<\/li>\n\n\n\n<li><code>03<\/code>\uff1a\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\uff08Holding Registers\uff09\u3002<\/li>\n\n\n\n<li><code>04<\/code>\uff1a\u8bfb\u53d6\u8f93\u5165\u5bc4\u5b58\u5668\uff08Input Registers\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5199\u64cd\u4f5c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>05<\/code>\uff1a\u5199\u5355\u4e2a\u4f4d\uff08\u7ebf\u5708\uff09\u3002<\/li>\n\n\n\n<li><code>06<\/code>\uff1a\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u3002<\/li>\n\n\n\n<li><code>15<\/code>\uff1a\u5199\u591a\u4e2a\u4f4d\uff08\u7ebf\u5708\uff09\u3002<\/li>\n\n\n\n<li><code>16<\/code>\uff1a\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8bca\u65ad\u64cd\u4f5c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>08<\/code>\uff1a\u8bca\u65ad\u529f\u80fd\uff0c\u5982\u56de\u73af\u6d4b\u8bd5\uff08Loopback Test\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e09\u3001Modbus\u534f\u8bae\u7684\u5e27\u7ed3\u6784<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u7684\u5e27\u7ed3\u6784\u6839\u636e\u901a\u4fe1\u65b9\u5f0f\u4e0d\u540c\uff0c\u4e3b\u8981\u5206\u4e3a<strong>Modbus RTU<\/strong>\u548c<strong>Modbus TCP\/IP<\/strong>\u4e24\u79cd\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">1. <strong>Modbus RTU\u5e27\u7ed3\u6784<\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus RTU\u662f\u57fa\u4e8e\u4e32\u884c\u901a\u4fe1\u7684\u65b9\u5f0f\uff0c\u6570\u636e\u683c\u5f0f\u7d27\u51d1\uff0c\u9ad8\u6548\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5e27\u7ed3\u6784<\/strong>\uff1a\u5b57\u6bb5\u957f\u5ea6 (\u5b57\u8282)\u63cf\u8ff0\u4ece\u7ad9\u5730\u57401\u6807\u8bc6\u76ee\u6807\u8bbe\u5907\u7684\u5730\u5740\u3002\u529f\u80fd\u78011\u6307\u793a\u6267\u884c\u7684\u64cd\u4f5c\u7c7b\u578b\u3002\u6570\u636e\u5b57\u6bb5N\u64cd\u4f5c\u76f8\u5173\u7684\u5177\u4f53\u6570\u636e\uff0c\u957f\u5ea6\u7531\u529f\u80fd\u7801\u51b3\u5b9a\u3002\u6821\u9a8c\u7801\uff08CRC\uff092\u7528\u4e8e\u9519\u8bef\u68c0\u6d4b\u7684\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e27\u4e4b\u95f4\u901a\u8fc7\u65f6\u95f4\u95f4\u9694\u533a\u5206\u3002<\/li>\n\n\n\n<li>CRC\u6821\u9a8c\u589e\u5f3a\u4e86\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">2. <strong>Modbus TCP\/IP\u5e27\u7ed3\u6784<\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus TCP\/IP\u57fa\u4e8e\u4ee5\u592a\u7f51\u901a\u4fe1\uff0c\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u66f4\u5feb\uff0c\u9002\u7528\u4e8e\u73b0\u4ee3\u7f51\u7edc\u73af\u5883\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5e27\u7ed3\u6784<\/strong>\uff1a\u5b57\u6bb5\u957f\u5ea6 (\u5b57\u8282)\u63cf\u8ff0\u4e8b\u52a1\u6807\u8bc6\u7b262\u6807\u8bc6\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u5339\u914d\u5173\u7cfb\u3002\u534f\u8bae\u6807\u8bc6\u7b262\u56fa\u5b9a\u4e3a<code>0x0000<\/code>\uff0c\u8868\u793aModbus\u534f\u8bae\u3002\u957f\u5ea6\u5b57\u6bb52\u8868\u793a\u540e\u7eed\u6570\u636e\u7684\u603b\u957f\u5ea6\uff08\u5b57\u8282\u6570\uff09\u3002\u5355\u5143\u6807\u8bc6\u7b261\u5bf9\u5e94Modbus RTU\u4e2d\u7684\u4ece\u7ad9\u5730\u5740\u3002\u529f\u80fd\u78011\u64cd\u4f5c\u7c7b\u578b\u3002\u6570\u636e\u5b57\u6bb5N\u64cd\u4f5c\u76f8\u5173\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u53d6\u6d88\u4e86CRC\u6821\u9a8c\uff0c\u4f9d\u8d56TCP\/IP\u7684\u9519\u8bef\u68c0\u6d4b\u673a\u5236\u3002<\/li>\n\n\n\n<li>\u53ef\u5b9e\u73b0\u8fdc\u7a0b\u901a\u4fe1\uff0c\u65e0\u9700\u4f20\u7edf\u4e32\u884c\u7f51\u7edc\u9650\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">\u56db\u3001Modbus\u5bc4\u5b58\u5668\u4e0e\u6570\u636e\u6a21\u578b<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u5c06\u8bbe\u5907\u7684\u5185\u90e8\u6570\u636e\u5206\u4e3a\u4ee5\u4e0b\u56db\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u6bcf\u79cd\u7c7b\u578b\u6709\u72ec\u7acb\u7684\u5730\u5740\u7a7a\u95f4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7ebf\u5708\uff08Coils\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u578b\uff1a\u8bfb\u5199\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5185\u5bb9\uff1a\u5355\u4e2a\u4f4d\u3002<\/li>\n\n\n\n<li>\u5730\u5740\u8303\u56f4\uff1a<code>00001<\/code> &#8211; <code>09999<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u79bb\u6563\u8f93\u5165\uff08Discrete Inputs\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u578b\uff1a\u53ea\u8bfb\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5185\u5bb9\uff1a\u5355\u4e2a\u4f4d\u3002<\/li>\n\n\n\n<li>\u5730\u5740\u8303\u56f4\uff1a<code>10001<\/code> &#8211; <code>19999<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8f93\u5165\u5bc4\u5b58\u5668\uff08Input Registers\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u578b\uff1a\u53ea\u8bfb\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5185\u5bb9\uff1a16\u4f4d\u6574\u6570\u3002<\/li>\n\n\n\n<li>\u5730\u5740\u8303\u56f4\uff1a<code>30001<\/code> &#8211; <code>39999<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fdd\u6301\u5bc4\u5b58\u5668\uff08Holding Registers\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u578b\uff1a\u8bfb\u5199\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5185\u5bb9\uff1a16\u4f4d\u6574\u6570\u3002<\/li>\n\n\n\n<li>\u5730\u5740\u8303\u56f4\uff1a<code>40001<\/code> &#8211; <code>49999<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e94\u3001Modbus\u7684\u4f18\u7f3a\u70b9<\/h5>\n\n\n\n<h6 class=\"wp-block-heading\">1. <strong>\u4f18\u70b9<\/strong>\uff1a<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b80\u5355\u6613\u7528<\/strong>\uff1a\u7ed3\u6784\u6e05\u6670\uff0c\u6613\u4e8e\u5b9e\u73b0\u548c\u8c03\u8bd5\u3002<\/li>\n\n\n\n<li><strong>\u517c\u5bb9\u6027\u5f3a<\/strong>\uff1a\u5e7f\u6cdb\u652f\u6301\u4e8e\u5de5\u4e1a\u8bbe\u5907\u3002<\/li>\n\n\n\n<li><strong>\u7075\u6d3b\u6027\u9ad8<\/strong>\uff1a\u652f\u6301\u591a\u79cd\u901a\u4fe1\u65b9\u5f0f\uff08RTU\/ASCII\/TCP\uff09\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u9760\u6027\u9ad8<\/strong>\uff1aRTU\u6a21\u5f0f\u901a\u8fc7CRC\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">2. <strong>\u7f3a\u70b9<\/strong>\uff1a<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65e0\u5b89\u5168\u6027<\/strong>\uff1a\u7f3a\u4e4f\u8eab\u4efd\u9a8c\u8bc1\u548c\u52a0\u5bc6\uff0c\u6613\u53d7\u653b\u51fb\u3002<\/li>\n\n\n\n<li><strong>\u5e26\u5bbd\u9650\u5236<\/strong>\uff1aModbus RTU\u6570\u636e\u5e27\u77ed\uff0c\u9002\u5408\u4f4e\u901f\u901a\u4fe1\u3002<\/li>\n\n\n\n<li><strong>\u5730\u5740\u7a7a\u95f4\u6709\u9650<\/strong>\uff1a\u652f\u6301\u7684\u8bbe\u5907\u5730\u5740\u8f83\u5c11\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">\u516d\u3001Modbus\u7684\u5e94\u7528\u573a\u666f<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5de5\u4e1a\u81ea\u52a8\u5316<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>PLC\u4e0e\u4f20\u611f\u5668\u4e4b\u95f4\u7684\u6570\u636e\u91c7\u96c6\u548c\u63a7\u5236\u3002<\/li>\n\n\n\n<li>HMI\u4e0ePLC\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u80fd\u6e90\u7ba1\u7406<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u667a\u80fd\u7535\u8868\u7684\u8fdc\u7a0b\u6284\u8868\u3002<\/li>\n\n\n\n<li>\u7535\u529b\u7cfb\u7edf\u7684\u72b6\u6001\u76d1\u6d4b\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u697c\u5b87\u81ea\u52a8\u5316<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7a7a\u8c03\u3001\u7167\u660e\u7cfb\u7edf\u7684\u96c6\u4e2d\u63a7\u5236\u3002<\/li>\n\n\n\n<li>\u7535\u68af\u8fd0\u884c\u72b6\u6001\u76d1\u63a7\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fdc\u7a0b\u76d1\u63a7<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u77f3\u6cb9\u7ba1\u9053\u538b\u529b\u76d1\u6d4b\u3002<\/li>\n\n\n\n<li>\u519c\u4e1a\u704c\u6e89\u7cfb\u7edf\u81ea\u52a8\u5316\u63a7\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e03\u3001Modbus\u534f\u8bae\u7684\u6269\u5c55\u4e0e\u6539\u8fdb<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Modbus Plus<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u63d0\u9ad8\u4e86\u901a\u4fe1\u901f\u7387\uff0c\u652f\u6301\u591a\u4e3b\u8bbe\u5907\u7f51\u7edc\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Modbus TCP\/IP<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6269\u5c55\u5230\u4ee5\u592a\u7f51\u73af\u5883\uff0c\u652f\u6301Internet\u8fdc\u7a0b\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Modbus Secure<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u57fa\u4e8eTLS\/SSL\u7684\u5b89\u5168\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center\">Modbus\u6570\u636e\u5305\u5b8c\u6574\u89e3\u91ca\u793a\u4f8b<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4ee5**Modbus RTU\u534f\u8bae\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\uff08Holding Registers\uff09**\u7684\u8bf7\u6c42\u548c\u54cd\u5e94\u4e3a\u4f8b\uff0c\u5b8c\u6574\u89e3\u6790\u6570\u636e\u5305\u7684\u5404\u4e2a\u90e8\u5206\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u573a\u666f\u5047\u8bbe<\/strong><\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e3b\u8bbe\u5907\u8bf7\u6c42\u4ece\u8bbe\u5907\u5730\u5740 1<\/strong>\u3002<\/li>\n\n\n\n<li>\u8bf7\u6c42\u8bfb\u53d6\u4ece\u5730\u5740 <code>40001<\/code> \u5bf9\u5e94\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740\uff08\u5b9e\u9645\u5730\u5740 <code>0000<\/code>\uff09\uff0c\u8bfb\u53d6 2 \u4e2a\u5bc4\u5b58\u5668\uff08\u5373 4 \u4e2a\u5b57\u8282\uff09\u3002<\/li>\n\n\n\n<li>\u4ece\u8bbe\u5907\u8fd4\u56de\u5bf9\u5e94\u7684\u6570\u636e\u3002<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">1. Modbus RTU \u8bf7\u6c42\u5e27\u7ed3\u6784\u89e3\u6790<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bf7\u6c42\u6570\u636e\u5305<\/strong>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u6570\u636e<\/th><th>\u957f\u5ea6 (\u5b57\u8282)<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u4ece\u7ad9\u5730\u5740<\/td><td><code>0x01<\/code><\/td><td>1<\/td><td>\u6307\u5b9a\u76ee\u6807\u8bbe\u5907\u5730\u5740\u4e3a 1\u3002<\/td><\/tr><tr><td>\u529f\u80fd\u7801<\/td><td><code>0x03<\/code><\/td><td>1<\/td><td>\u8868\u793a\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u529f\u80fd\u7801\u3002<\/td><\/tr><tr><td>\u8d77\u59cb\u5730\u5740\u9ad8\u5b57\u8282<\/td><td><code>0x00<\/code><\/td><td>1<\/td><td>\u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740\u7684\u9ad8\u5b57\u8282\uff08\u8d77\u59cb\u5730\u5740 <code>0000<\/code> \u7684\u9ad8\u5b57\u8282\uff09\u3002<\/td><\/tr><tr><td>\u8d77\u59cb\u5730\u5740\u4f4e\u5b57\u8282<\/td><td><code>0x00<\/code><\/td><td>1<\/td><td>\u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740\u7684\u4f4e\u5b57\u8282\uff08\u8d77\u59cb\u5730\u5740 <code>0000<\/code> \u7684\u4f4e\u5b57\u8282\uff09\u3002<\/td><\/tr><tr><td>\u5bc4\u5b58\u5668\u6570\u91cf\u9ad8\u5b57\u8282<\/td><td><code>0x00<\/code><\/td><td>1<\/td><td>\u8bf7\u6c42\u8bfb\u53d6\u5bc4\u5b58\u5668\u6570\u91cf\u7684\u9ad8\u5b57\u8282\uff08\u8bfb\u53d6 2 \u4e2a\u5bc4\u5b58\u5668\uff09\u3002<\/td><\/tr><tr><td>\u5bc4\u5b58\u5668\u6570\u91cf\u4f4e\u5b57\u8282<\/td><td><code>0x02<\/code><\/td><td>1<\/td><td>\u8bf7\u6c42\u8bfb\u53d6\u5bc4\u5b58\u5668\u6570\u91cf\u7684\u4f4e\u5b57\u8282\uff08\u8bfb\u53d6 2 \u4e2a\u5bc4\u5b58\u5668\uff09\u3002<\/td><\/tr><tr><td>CRC\u6821\u9a8c\u4f4e\u5b57\u8282<\/td><td><code>0xC4<\/code><\/td><td>1<\/td><td>CRC16 \u6821\u9a8c\u7801\u7684\u4f4e\u5b57\u8282\uff08\u81ea\u52a8\u8ba1\u7b97\uff09\u3002<\/td><\/tr><tr><td>CRC\u6821\u9a8c\u9ad8\u5b57\u8282<\/td><td><code>0x0B<\/code><\/td><td>1<\/td><td>CRC16 \u6821\u9a8c\u7801\u7684\u9ad8\u5b57\u8282\uff08\u81ea\u52a8\u8ba1\u7b97\uff09\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b8c\u6574\u8bf7\u6c42\u5e27\uff08\u5341\u516d\u8fdb\u5236\u8868\u793a\uff09<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u590d\u5236\u7f16\u8f91<code>01 03 00 00 00 02 C4 0B\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u5b57\u6bb5\u9010\u6b65\u89e3\u6790\uff1a<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4ece\u7ad9\u5730\u5740\uff08<code>0x01<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u793a\u8bf7\u6c42\u53d1\u9001\u5230\u5730\u5740\u4e3a 1 \u7684\u4ece\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u529f\u80fd\u7801\uff08<code>0x03<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u793a\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\uff08Holding Registers\uff09\u7684\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8d77\u59cb\u5730\u5740\uff08<code>0x0000<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u4ece\u5bc4\u5b58\u5668\u5730\u5740 <code>40001<\/code> \u5f00\u59cb\uff08Modbus\u5730\u5740<code>40001<\/code>\u7684\u5b9e\u9645\u5730\u5740\u4e3a<code>0000<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bc4\u5b58\u5668\u6570\u91cf\uff08<code>0x0002<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u8bfb\u53d6 2 \u4e2a\u5bc4\u5b58\u5668\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CRC\u6821\u9a8c\uff08<code>0xC40B<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e8e\u9519\u8bef\u68c0\u6d4b\u7684\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801\uff0c\u7531\u8bf7\u6c42\u5e27\u524d\u9762\u7684\u6240\u6709\u5b57\u8282\u8ba1\u7b97\u5f97\u51fa\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">2. Modbus RTU \u54cd\u5e94\u5e27\u7ed3\u6784\u89e3\u6790<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u54cd\u5e94\u6570\u636e\u5305<\/strong>\uff08\u5047\u8bbe\u4ece\u8bbe\u5907\u8fd4\u56de\u4e24\u4e2a\u5bc4\u5b58\u5668\u7684\u503c\u5206\u522b\u4e3a <code>0x1234<\/code> \u548c <code>0x5678<\/code>\uff09\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u6570\u636e<\/th><th>\u957f\u5ea6 (\u5b57\u8282)<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u4ece\u7ad9\u5730\u5740<\/td><td><code>0x01<\/code><\/td><td>1<\/td><td>\u8868\u793a\u54cd\u5e94\u6765\u81ea\u5730\u5740\u4e3a 1 \u7684\u4ece\u8bbe\u5907\u3002<\/td><\/tr><tr><td>\u529f\u80fd\u7801<\/td><td><code>0x03<\/code><\/td><td>1<\/td><td>\u8868\u793a\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u529f\u80fd\u7801\u3002<\/td><\/tr><tr><td>\u6570\u636e\u5b57\u8282\u8ba1\u6570<\/td><td><code>0x04<\/code><\/td><td>1<\/td><td>\u8868\u793a\u540e\u7eed\u6570\u636e\u90e8\u5206\u7684\u5b57\u8282\u6570\uff0c\u5171 4 \u4e2a\u5b57\u8282\uff082 \u4e2a\u5bc4\u5b58\u5668\uff0c\u6bcf\u4e2a 2 \u5b57\u8282\uff09\u3002<\/td><\/tr><tr><td>\u6570\u636e1\u9ad8\u5b57\u8282<\/td><td><code>0x12<\/code><\/td><td>1<\/td><td>\u7b2c\u4e00\u4e2a\u5bc4\u5b58\u5668\uff08<code>40001<\/code>\uff09\u7684\u9ad8\u5b57\u8282\u3002<\/td><\/tr><tr><td>\u6570\u636e1\u4f4e\u5b57\u8282<\/td><td><code>0x34<\/code><\/td><td>1<\/td><td>\u7b2c\u4e00\u4e2a\u5bc4\u5b58\u5668\uff08<code>40001<\/code>\uff09\u7684\u4f4e\u5b57\u8282\u3002<\/td><\/tr><tr><td>\u6570\u636e2\u9ad8\u5b57\u8282<\/td><td><code>0x56<\/code><\/td><td>1<\/td><td>\u7b2c\u4e8c\u4e2a\u5bc4\u5b58\u5668\uff08<code>40002<\/code>\uff09\u7684\u9ad8\u5b57\u8282\u3002<\/td><\/tr><tr><td>\u6570\u636e2\u4f4e\u5b57\u8282<\/td><td><code>0x78<\/code><\/td><td>1<\/td><td>\u7b2c\u4e8c\u4e2a\u5bc4\u5b58\u5668\uff08<code>40002<\/code>\uff09\u7684\u4f4e\u5b57\u8282\u3002<\/td><\/tr><tr><td>CRC\u6821\u9a8c\u4f4e\u5b57\u8282<\/td><td><code>0x5D<\/code><\/td><td>1<\/td><td>CRC16 \u6821\u9a8c\u7801\u7684\u4f4e\u5b57\u8282\uff08\u81ea\u52a8\u8ba1\u7b97\uff09\u3002<\/td><\/tr><tr><td>CRC\u6821\u9a8c\u9ad8\u5b57\u8282<\/td><td><code>0xCA<\/code><\/td><td>1<\/td><td>CRC16 \u6821\u9a8c\u7801\u7684\u9ad8\u5b57\u8282\uff08\u81ea\u52a8\u8ba1\u7b97\uff09\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b8c\u6574\u54cd\u5e94\u5e27\uff08\u5341\u516d\u8fdb\u5236\u8868\u793a\uff09<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematica\u590d\u5236\u7f16\u8f91<code>01 03 04 12 34 56 78 5D CA\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u5b57\u6bb5\u9010\u6b65\u89e3\u6790\uff1a<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4ece\u7ad9\u5730\u5740\uff08<code>0x01<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u793a\u54cd\u5e94\u6765\u81ea\u5730\u5740\u4e3a 1 \u7684\u4ece\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u529f\u80fd\u7801\uff08<code>0x03<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u793a\u8bbe\u5907\u6210\u529f\u6267\u884c\u4e86\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5b57\u8282\u8ba1\u6570\uff08<code>0x04<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u793a\u8fd4\u56de\u7684\u5bc4\u5b58\u5668\u6570\u636e\u90e8\u5206\u5171\u6709 4 \u4e2a\u5b57\u8282\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u636e\u90e8\u5206<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u4e2a\u5bc4\u5b58\u5668\uff08<code>40001<\/code>\uff09\uff1a\u9ad8\u5b57\u8282 <code>0x12<\/code>\uff0c\u4f4e\u5b57\u8282 <code>0x34<\/code>\uff0c\u5408\u5e76\u540e\u4e3a <code>0x1234<\/code>\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u4e2a\u5bc4\u5b58\u5668\uff08<code>40002<\/code>\uff09\uff1a\u9ad8\u5b57\u8282 <code>0x56<\/code>\uff0c\u4f4e\u5b57\u8282 <code>0x78<\/code>\uff0c\u5408\u5e76\u540e\u4e3a <code>0x5678<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CRC\u6821\u9a8c\uff08<code>0x5DCA<\/code>\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e8e\u68c0\u6d4b\u54cd\u5e94\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u6b63\u786e\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">3. CRC\u6821\u9a8c\u8ba1\u7b97<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\u6821\u9a8c\u91c7\u7528 <strong>Modbus CRC16\u7b97\u6cd5<\/strong> \u8ba1\u7b97\u4ee5\u4e0b\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u5e27\u6821\u9a8c\u8303\u56f4\uff1a<code>01 03 00 00 00 02<\/code>\u3002<\/li>\n\n\n\n<li>\u54cd\u5e94\u5e27\u6821\u9a8c\u8303\u56f4\uff1a<code>01 03 04 12 34 56 78<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba1\u7b97\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521d\u59cb\u503c\u4e3a <code>0xFFFF<\/code>\u3002<\/li>\n\n\n\n<li>\u9010\u5b57\u8282\u8ba1\u7b97\uff0c\u66f4\u65b0CRC\u503c\u3002<\/li>\n\n\n\n<li>\u6700\u7ec8\u7ed3\u679c\u662f 2 \u5b57\u8282\uff0c\u5206\u522b\u5b58\u50a8\u4e3a\u4f4e\u5b57\u8282\u548c\u9ad8\u5b57\u8282\u3002<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">4. \u603b\u7ed3<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bf7\u6c42\u5e27<\/strong>\u7ed3\u6784\u6e05\u6670\uff0c\u4ece\u7ad9\u5730\u5740\u3001\u529f\u80fd\u7801\u3001\u8d77\u59cb\u5730\u5740\u3001\u5bc4\u5b58\u5668\u6570\u91cf\u3001CRC\u6821\u9a8c\u7ec4\u6210\u3002<\/li>\n\n\n\n<li><strong>\u54cd\u5e94\u5e27<\/strong>\u5305\u542b\u8fd4\u56de\u6570\u636e\u548c\u76f8\u5173\u4fe1\u606f\uff0c\u5982\u6570\u636e\u5b57\u8282\u8ba1\u6570\u3001\u5bc4\u5b58\u5668\u503c\u53caCRC\u6821\u9a8c\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u89e3\u6790<\/strong>\u76f4\u63a5\u57fa\u4e8e\u529f\u80fd\u7801\u548c\u6570\u636e\u7ed3\u6784\uff0c\u9002\u5408\u5b9e\u73b0\u7075\u6d3b\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u9700\u8981\u5b9e\u9645\u4ee3\u7801\u5b9e\u73b0\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63a2\u7d22\u57fa\u4e8ePython\u3001C\u6216\u5176\u4ed6\u8bed\u8a00\u7684Modbus\u901a\u4fe1\u5e93\uff0c\u5982 <code>pymodbus<\/code> \u6216 <code>libmodbus<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center\">Modbus\u5730\u5740\u4e0e\u5bc4\u5b58\u5668\u5730\u5740<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">1. <strong>Modbus\u5730\u5740\u4e0e\u5bc4\u5b58\u5668\u5730\u5740\u7684\u6982\u5ff5<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modbus\u5730\u5740<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7528\u6237\u53ef\u8bfb\u7684\u903b\u8f91\u5730\u5740\uff0c\u7528\u4e8e\u8868\u793a\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u4f8b\u5982\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u8f93\u5165\u5bc4\u5b58\u5668\u3001\u7ebf\u5708\u3001\u79bb\u6563\u8f93\u5165\u7b49\u3002<\/li>\n\n\n\n<li>Modbus\u5730\u5740\u4ece1\u5f00\u59cb\uff08\u4f8b\u598240001\uff09\uff0c\u7b26\u5408\u4eba\u7c7b\u4e60\u60ef\u7684\u7f16\u53f7\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bc4\u5b58\u5668\u5730\u5740<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5b9e\u9645\u7684\u6570\u636e\u5b58\u50a8\u5730\u5740\uff0c\u662f\u4ece0\u5f00\u59cb\u7684\u504f\u79fb\u91cf\uff0c\u8868\u793a\u5bc4\u5b58\u5668\u5728\u8bbe\u5907\u4e2d\u7684\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>\u8ba1\u7b97\u673a\u5185\u90e8\u5b58\u50a8\u4ece0\u8d77\u59cb\uff0c\u56e0\u6b64\u5bc4\u5b58\u5668\u5730\u5740\u6bd4Modbus\u5730\u5740\u5c111\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">2. <strong>Modbus\u5730\u5740\u4e0e\u5bc4\u5b58\u5668\u5730\u5740\u7684\u5173\u7cfb<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Modbus\u534f\u8bae\u5c06\u8bbe\u5907\u7684\u6570\u636e\u5b58\u50a8\u5212\u5206\u4e3a\u4ee5\u4e0b\u56db\u79cd\u533a\u57df\uff0c\u6bcf\u79cd\u533a\u57df\u6709\u5bf9\u5e94\u7684\u903b\u8f91\u5730\u5740\u8303\u56f4\u548c\u5bc4\u5b58\u5668\u5730\u5740\u8303\u56f4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6570\u636e\u7c7b\u578b<\/th><th>Modbus\u5730\u5740\u8303\u56f4<\/th><th>\u5bc4\u5b58\u5668\u5730\u5740\u8303\u56f4<\/th><th>Modbus\u5730\u5740\u793a\u4f8b<\/th><th>\u5b9e\u9645\u5730\u5740<\/th><\/tr><\/thead><tbody><tr><td>\u7ebf\u5708\uff08Coils\uff09<\/td><td><code>00001<\/code> &#8211; <code>09999<\/code><\/td><td><code>0<\/code> &#8211; <code>9998<\/code><\/td><td><code>00001<\/code><\/td><td><code>0<\/code><\/td><\/tr><tr><td>\u79bb\u6563\u8f93\u5165<\/td><td><code>10001<\/code> &#8211; <code>19999<\/code><\/td><td><code>0<\/code> &#8211; <code>9998<\/code><\/td><td><code>10001<\/code><\/td><td><code>0<\/code><\/td><\/tr><tr><td>\u8f93\u5165\u5bc4\u5b58\u5668<\/td><td><code>30001<\/code> &#8211; <code>39999<\/code><\/td><td><code>0<\/code> &#8211; <code>9998<\/code><\/td><td><code>30001<\/code><\/td><td><code>0<\/code><\/td><\/tr><tr><td>\u4fdd\u6301\u5bc4\u5b58\u5668<\/td><td><code>40001<\/code> &#8211; <code>49999<\/code><\/td><td><code>0<\/code> &#8211; <code>9998<\/code><\/td><td><code>40001<\/code><\/td><td><code>0<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728Modbus\u534f\u8bae\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modbus\u5730\u5740 = \u5b9e\u9645\u5bc4\u5b58\u5668\u5730\u5740 + \u8d77\u59cb\u504f\u79fb\u91cf<\/strong>\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u4fdd\u6301\u5bc4\u5b58\u5668\uff0c\u8d77\u59cb\u504f\u79fb\u91cf\u4e3a <code>40001<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">3. <strong>\u4e3a\u4ec0\u4e48\u201c\u5730\u574040001\u201d\u7684\u5b9e\u9645\u5730\u5740\u662f\u201c0000\u201d\uff1f<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u6309\u7167\u4e0a\u8ff0\u5173\u7cfb\uff0c<strong>Modbus\u5730\u574040001<\/strong> \u5bf9\u5e94\u7684\u5b9e\u9645\u5bc4\u5b58\u5668\u5730\u5740\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a\u5b9e\u9645\u5730\u5740=Modbus\u5730\u5740\u2212\u8d77\u59cb\u504f\u79fb\u91cf\u5b9e\u9645\u5730\u5740 = Modbus\u5730\u5740 &#8211; \u8d77\u59cb\u504f\u79fb\u91cf\u5b9e\u9645\u5730\u5740=Modbus\u5730\u5740\u2212\u8d77\u59cb\u504f\u79fb\u91cf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4fdd\u6301\u5bc4\u5b58\u5668\uff1a\u5b9e\u9645\u5730\u5740=40001\u221240001=0\u5b9e\u9645\u5730\u5740 = 40001 &#8211; 40001 = 0\u5b9e\u9645\u5730\u5740=40001\u221240001=0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0cModbus\u5730\u5740 <code>40001<\/code> \u7684\u5b9e\u9645\u5bc4\u5b58\u5668\u5730\u5740\u4e3a <code>0000<\/code>\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">4. <strong>\u5386\u53f2\u539f\u56e0\u4e0e\u8bbe\u8ba1\u521d\u8877<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4eba\u7c7b\u53cb\u597d\u6027<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u903b\u8f91\u5730\u5740\u4ece1\u5f00\u59cb\uff08\u598240001\uff09\u66f4\u7b26\u5408\u4eba\u7c7b\u4e60\u60ef\uff0c\u800c\u8ba1\u7b97\u673a\u5185\u90e8\u901a\u5e38\u4ece0\u5f00\u59cb\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u636e\u7c7b\u578b\u533a\u5206<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Modbus\u534f\u8bae\u4f7f\u7528\u903b\u8f91\u5730\u5740\u7684<strong>\u7b2c\u4e00\u4e2a\u6570\u5b57<\/strong>\u533a\u5206\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff1a\n<ul class=\"wp-block-list\">\n<li>4xxxx \u8868\u793a\u4fdd\u6301\u5bc4\u5b58\u5668\u3002<\/li>\n\n\n\n<li>3xxxx \u8868\u793a\u8f93\u5165\u5bc4\u5b58\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8fd9\u79cd\u8bbe\u8ba1\u5728\u5de5\u4e1a\u8bbe\u5907\u7684\u914d\u7f6e\u548c\u8c03\u8bd5\u4e2d\u5177\u6709\u5f88\u9ad8\u7684\u53ef\u8bfb\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">5. <strong>\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bc4\u5b58\u5668\u5730\u5740\u4e0eModbus\u5730\u5740\u7684\u8f6c\u6362<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7f16\u5199Modbus\u5ba2\u6237\u7aef\u65f6\uff0c\u5f88\u591a\u5e93\uff08\u5982<code>pymodbus<\/code>\uff09\u8981\u6c42\u8f93\u5165\u7684\u662f<strong>\u5b9e\u9645\u5bc4\u5b58\u5668\u5730\u5740<\/strong>\uff0c\u800c\u975eModbus\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u9700\u8981\u8bfb\u53d6Modbus\u5730\u5740 <code>40001<\/code>\uff0c\u5e94\u5c06\u5176\u8f6c\u6362\u4e3a\u5bc4\u5b58\u5668\u5730\u5740 <code>0<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8bef\u89e3\u4e0e\u95ee\u9898<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7528\u6237\u6709\u65f6\u4f1a\u6df7\u6dc6\u4e24\u79cd\u5730\u5740\uff0c\u5bfc\u81f4\u901a\u4fe1\u5931\u8d25\u3002\u4f8b\u5982\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u5730\u5740<code>40001<\/code>\u65f6\u8f93\u5165\u5bc4\u5b58\u5668\u5730\u5740<code>40000<\/code>\uff0c\u4f1a\u5f15\u53d1\u9519\u8bef\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">6. \u603b\u7ed3<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modbus\u5730\u574040001\u7684\u5b9e\u9645\u5730\u5740\u4e3a0000<\/strong> \u662f\u7531\u4e8e Modbus\u5730\u5740\u4ece1\u8d77\u59cb\uff0c\u800c\u5bc4\u5b58\u5668\u5730\u5740\u4ece0\u8d77\u59cb\u3002<\/li>\n\n\n\n<li>\u8fd9\u79cd\u8bbe\u8ba1\u63d0\u9ad8\u4e86\u6570\u636e\u7c7b\u578b\u533a\u5206\u7684\u53ef\u8bfb\u6027\uff0c\u540c\u65f6\u9700\u8981\u5728\u5b9e\u9645\u5b9e\u73b0\u4e2d\u6b63\u786e\u8f6c\u6362\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u719f\u6089\u5730\u5740\u5173\u7cfb\u5bf9\u4e8e\u907f\u514d\u901a\u4fe1\u9519\u8bef\u81f3\u5173\u91cd\u8981\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Modbus\u534f\u8bae\u4ecb\u7ecd Modbus\u534f\u8bae\u662f\u4e00\u79cd\u5e94\u7528\u5c42\u901a\u4fe1\u534f\u8bae\uff0c\u6700\u521d\u7531Modicon\uff08\u73b0\u4e3a\u65bd\u8010\u5fb7\u7535\u6c14\u7684\u4e00\u90e8\u5206\uff09\u57281 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3,8],"tags":[40],"class_list":["post-5581","post","type-post","status-publish","format-standard","hentry","category-it","category-tech","tag-iot"],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"NullThought","author_link":"https:\/\/nullthought.net\/?author=1"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/nullthought.net\/?cat=3\" rel=\"category\">IT<\/a> <a href=\"https:\/\/nullthought.net\/?cat=8\" rel=\"category\">Tech<\/a>","rttpg_excerpt":"Modbus\u534f\u8bae\u4ecb\u7ecd Modbus\u534f\u8bae\u662f\u4e00\u79cd\u5e94\u7528\u5c42\u901a\u4fe1\u534f\u8bae\uff0c\u6700\u521d\u7531Modicon\uff08\u73b0\u4e3a\u65bd\u8010\u5fb7\u7535\u6c14\u7684\u4e00\u90e8\u5206\uff09\u57281&hellip;","_links":{"self":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5581"}],"version-history":[{"count":2,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5581\/revisions"}],"predecessor-version":[{"id":5583,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5581\/revisions\/5583"}],"wp:attachment":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}