{"id":45424,"date":"2026-07-01T13:34:37","date_gmt":"2026-07-01T05:34:37","guid":{"rendered":"https:\/\/www.modbus.cn\/45424.html"},"modified":"2026-07-01T13:34:37","modified_gmt":"2026-07-01T05:34:37","slug":"%e5%b7%a5%e4%b8%9a%e9%80%9a%e4%bf%a1%e5%8d%8f%e8%ae%ae%e9%80%89%e5%9e%8b%e5%86%b3%e7%ad%96%e6%8c%87%e5%8d%97%ef%bc%9amodbus-vs-mqtt-vs-opc-ua","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/45424.html","title":{"rendered":"\u5de5\u4e1a\u901a\u4fe1\u534f\u8bae\u9009\u578b\u51b3\u7b56\u6307\u5357\uff1aModbus vs MQTT vs OPC UA"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u522b\u4e0a\u6765\u5c31\u9009\u534f\u8bae<\/h2>\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u4e2a\u8bba\u575b\u90fd\u5728\u95ee\u540c\u4e00\u4e2a\u95ee\u9898\uff1a\u300c\u6211\u8fd9\u4e2a\u9879\u76ee\u7528 Modbus \u8fd8\u662f MQTT\uff1f\u8981\u4e0d\u8981\u4e0a OPC UA\uff1f\u300d<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u56de\u7b54\u6c38\u8fdc\u662f\u2014\u2014\u5148\u544a\u8bc9\u6211\u4f60\u7684\u73b0\u573a\u6709\u51e0\u53f0\u8bbe\u5907\u3001\u8d70\u4ec0\u4e48\u7269\u7406\u5c42\u3001\u6570\u636e\u5f80\u54ea\u53bb\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u534f\u8bae\u9009\u578b\u4e0d\u662f\u9009\u54ea\u4e2a\u66f4\u5148\u8fdb\uff0c\u662f\u9009\u54ea\u4e2a\u5728\u4f60\u8fd9\u573a\u666f\u4e0b\u51fa\u7684\u95ee\u9898\u6700\u5c11\u3002Modbus 1979 \u5e74\u8bde\u751f\uff0cMQTT 1999 \u5e74\uff0cOPC UA 2006 \u5e74\u2014\u2014\u4e09\u4e2a\u534f\u8bae\u90fd\u6ca1\u6b7b\uff0c\u8bf4\u660e\u5404\u6709\u5404\u7684\u996d\u7897\u3002\u4f60\u9700\u8981\u7684\u4e0d\u662f\u300c\u54ea\u4e2a\u6700\u597d\u300d\u7684\u7ed3\u8bba\uff0c\u662f\u4e00\u5957\u5de5\u7a0b\u51b3\u7b56\u6846\u67b6\uff0c\u8ba9\u4f60\u4e09\u5206\u949f\u5185\u81ea\u5df1\u5f97\u51fa\u7ed3\u8bba\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u79cd\u534f\u8bae\uff0c\u7528\u4e00\u53e5\u8bdd\u8bf4\u6e05<\/h2>\n\n\n<p class=\"wp-block-paragraph\">**Modbus RTU\/TCP**\uff1a\u4e3b\u7ad9\u6328\u4e2a\u95ee\u4ece\u7ad9\uff0c\u4e00\u95ee\u4e00\u7b54\u3002\u5e27\u683c\u5f0f\u56fa\u5b9a\uff0c\u5730\u5740+\u529f\u80fd\u7801+\u6570\u636e+CRC\u3002\u4ece\u7ad9\u4e0d\u4f1a\u4e3b\u52a8\u8bf4\u8bdd\uff0c\u5fc5\u987b\u7b49\u4e3b\u7ad9\u53eb\u5b83\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u6253\u4e2a\u6bd4\u65b9\uff1a\u519b\u8bad\u70b9\u540d\u3002\u6559\u5b98\u53eb\u4e00\u4e2a\u5b66\u53f7\uff0c\u5b66\u751f\u62a5\u4e00\u58f0\u300c\u5230\u300d\u3002\u518d\u53eb\u4e0b\u4e00\u4e2a\u3002\u5168\u73ed 30 \u4e2a\u4eba\uff0c\u4e00\u4e2a\u4e00\u4e2a\u6765\uff0c\u79e9\u5e8f\u4e95\u7136\u3002\u6559\u5b98\u7d2f\u70b9\u6ca1\u5173\u7cfb\uff0c\u4f46\u5982\u679c\u6709 500 \u4e2a\u4eba\uff1f\u7b49\u53eb\u5230\u6700\u540e\u4e00\u6392\u5df2\u7ecf\u8fc7\u53bb\u4e8c\u5341\u5206\u949f\u4e86\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**MQTT**\uff1a\u53d1\u5e03\/\u8ba2\u9605\u6a21\u578b\u3002\u8bbe\u5907\u81ea\u5df1\u51b3\u5b9a\u4ec0\u4e48\u65f6\u5019\u4e0a\u62a5\uff0c\u4e0d\u9700\u8981\u6709\u4eba\u6765\u95ee\u3002Broker \u662f\u90ae\u5c40\uff0c\u8bbe\u5907\u5f80\u4e3b\u9898\u91cc\u6254\u6d88\u606f\uff0c\u8c01\u8ba2\u9605\u8c01\u6536\u5230\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u573a\u7c7b\u6bd4\uff1a\u5fae\u4fe1\u7fa4\u3002\u4f20\u611f\u5668\u5728\u7fa4\u91cc\u53d1\u4e86\u4e00\u6761\u300c\u6211\u8d85\u6807\u4e86\u300d\uff0c\u6240\u6709\u8ba2\u9605\u4e86\u8fd9\u4e2a\u7fa4\u7684\u7cfb\u7edf\u540c\u65f6\u770b\u5230\u3002\u4e0d\u7528\u7b49\u8c01\u95ee\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**OPC UA**\uff1a\u9762\u5411\u5bf9\u8c61\u7684\u5de5\u4e1a\u4e92\u64cd\u4f5c\u6846\u67b6\u3002\u4e0d\u53ea\u662f\u4f20\u8f93\u6570\u636e\uff0c\u8fd8\u81ea\u5e26\u8bed\u4e49\u6a21\u578b\u2014\u2014\u544a\u8bc9\u4f60\u8fd9\u6bb5\u6570\u636e\u662f\u300c\u7535\u673a\u7535\u6d41\u300d\uff0c\u5355\u4f4d\u662f\u5b89\u57f9\uff0c\u53d6\u503c\u8303\u56f4 0-100\uff0c\u7cbe\u5ea6 0.1\u3002\u8fd8\u6709\u5b89\u5168\u901a\u9053\u3001\u8ba4\u8bc1\u8bc1\u4e66\u3001\u65b9\u6cd5\u8c03\u7528\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u50cf\u5916\u8bed\u7ffb\u8bd1\u5b98\uff1a\u897f\u95e8\u5b50 PLC \u8bf4\u5fb7\u8bed\uff0c\u7f57\u514b\u97e6\u5c14\u8bf4\u82f1\u8bed\uff0c\u4e09\u83f1\u8bf4\u65e5\u8bed\uff0cOPC UA \u8d1f\u8d23\u7ffb\u8bd1\u6210\u901a\u7528\u8bed\uff0c\u8fd8\u9644\u5e26\u4e00\u672c\u8be6\u7ec6\u7684\u8bed\u6cd5\u8bf4\u660e\u4e66\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u4e09\u79cd\u534f\u8bae\u4e0d\u6253\u67b6\u3002\u771f\u5b9e\u9879\u76ee\u91cc\u5b83\u4eec\u7ecf\u5e38\u6df7\u7740\u7528\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">12 \u6761\u9009\u62e9\u6807\u51c6\uff0c\u5de5\u7a0b\u786c\u6307\u6807<\/h2>\n\n\n<h3 class=\"wp-block-heading\">1. \u8bbe\u5907\u6570\u91cf\uff1a\u8f6e\u8be2\u7684\u6570\u5b66\u5929\u82b1\u677f<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus RTU \u5728 9600 bps \u4e0b\uff0c\u8bfb\u4e00\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\uff08\u529f\u80fd\u7801 03\uff09\uff0c\u4e3b\u7ad9\u53d1 8 \u5b57\u8282\uff0c\u4ece\u7ad9\u56de 7 \u5b57\u8282\uff08\u5730\u5740+\u529f\u80fd\u7801+\u5b57\u8282\u6570+2 \u5b57\u8282\u6570\u636e+2 \u5b57\u8282 CRC\uff09\uff0c\u5171 15 \u5b57\u8282\u3002\u52a0\u4e0a 3.5 \u5b57\u7b26\u7684\u5e27\u95f4\u9694\uff08\u7ea6 4ms @ 9600\uff09\u548c\u4ece\u7ad9\u54cd\u5e94\u5ef6\u8fdf\uff08\u901a\u5e38 10-50ms\uff0c\u4fdd\u5b88\u53d6 20ms\uff09\uff1a<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u53f0\u4ece\u7ad9\u5355\u6b21\u8f6e\u8be2\u65f6\u95f4 = \u5e27\u4f20\u8f93\u65f6\u95f4 + \u5e27\u95f4\u9694 + \u4ece\u7ad9\u54cd\u5e94\u5ef6\u8fdf<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u5e27\u4f20\u8f93\u65f6\u95f4 = 15 \u00d7 11 bit \u00f7 9600 = 17.2ms\uff0811 bit\/\u5b57\u7b26\uff1a1 \u8d77\u59cb\u4f4d+8 \u6570\u636e\u4f4d+1 \u6821\u9a8c\u4f4d+1 \u505c\u6b62\u4f4d\uff09<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u5355\u53f0\u8f6e\u8be2 \u2248 17.2 + 4 + 4 + 20 = 45.2ms<\/p>\n\n\n<p class=\"wp-block-paragraph\">200 \u53f0\u4ece\u7ad9\uff0c\u6bcf\u53f0\u8bfb 10 \u4e2a\u5bc4\u5b58\u5668\uff08\u591a\u5bc4\u5b58\u5668\u8bfb\u53d6\u7684\u5e27\u66f4\u957f\uff0c\u4e00\u5e27\u5927\u6982\u80fd\u585e 125 \u4e2a\u5bc4\u5b58\u5668\uff09\uff0c\u5b9e\u9645\u5355\u8f6e\u8be2\u5927\u7ea6 60-80ms\/\u53f0\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**200 \u53f0 \u00d7 70ms = 14 \u79d2\u3002**\u4f60\u5728\u63a7\u5236\u5ba4\u91cc\u770b\u7740\u5c4f\u5e55\uff0cHMI \u4e0a\u7684\u6570\u636e 14 \u79d2\u624d\u5237\u65b0\u4e00\u6b21\u3002\u62a5\u8b66\u4fe1\u53f7\u5728\u8def\u4e0a\u8d70\u4e86 14 \u79d2\u624d\u88ab\u4f60\u770b\u5230\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u8fd8\u662f\u7406\u8bba\u6700\u4f18\u503c\u3002\u5b9e\u9645\u5de5\u7a0b\u91cc\uff0c\u4ece\u7ad9\u54cd\u5e94\u8d85\u65f6\u3001\u91cd\u8bd5\u3001\u7ebf\u8def\u8d28\u91cf\u4e0b\u964d\u90fd\u80fd\u8ba9\u8fd9\u4e2a\u6570\u5b57\u7ffb\u500d\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u8bbe\u5907 &lt; 50 \u53f0\uff0cModbus RTU \u8f6e\u8be2\u5468\u671f\u5728 2-3 \u79d2\u4ee5\u5185\uff0c\u5bf9\u5927\u591a\u6570\u76d1\u63a7\u573a\u666f\u591f\u7528\u3002\u8d85\u8fc7 100 \u53f0\uff0c\u8981\u4e48\u4e0a Modbus TCP\uff08\u4ee5\u592a\u7f51\u4e0d\u5403\u4e32\u53e3\u5e26\u5bbd\u7684\u4e8f\uff09\uff0c\u8981\u4e48\u6539\u7528 MQTT\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">2. \u901a\u4fe1\u6a21\u578b\uff1a\u8f6e\u8be2 vs \u4e8b\u4ef6\u9a71\u52a8<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u662f\u8f6e\u8be2\u3002\u4f60\u6bcf\u9694 N \u79d2\u95ee\u4e00\u5708\uff0c\u62a5\u8b66\u4fe1\u53f7\u53ef\u80fd\u5728\u4e24\u6b21\u8f6e\u8be2\u4e4b\u95f4\u4ea7\u751f\uff0c\u4f46\u4f60\u5fc5\u987b\u7b49\u5230\u4e0b\u4e00\u5708\u624d\u770b\u5230\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u573a\u666f\uff1a\u6c61\u6c34\u5904\u7406\u7ad9\uff0c\u8fdb\u6c34 pH \u503c\u7a81\u7136\u4ece 7 \u8dcc\u5230 4\u3002Modbus \u7684\u8f6e\u8be2\u5468\u671f\u662f 5 \u79d2\uff0c\u6700\u574f\u60c5\u51b5\u2014\u2014pH \u4f20\u611f\u5668\u521a\u88ab\u95ee\u5b8c\u5c31\u8d85\u6807\uff0c\u4f60\u8981\u7b49\u63a5\u8fd1 5 \u79d2\u624d\u77e5\u9053\u30025 \u79d2\u5bf9\u4e8e\u5de5\u827a\u4fdd\u62a4\u6765\u8bf4\uff0c\u592a\u957f\u4e86\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u662f\u4e8b\u4ef6\u9a71\u52a8\u3002\u4f20\u611f\u5668\u68c0\u6d4b\u5230\u5f02\u5e38\uff0c\u7acb\u523b\u53d1\u5e03\u6d88\u606f\u3002Broker \u5728\u540c\u4e00\u79d2\u5185\u8f6c\u53d1\u7ed9\u76d1\u63a7\u7cfb\u7edf\u3002\u5ef6\u8fdf\u53d6\u51b3\u4e8e\u7f51\u7edc\u5ef6\u8fdf+Broker \u5904\u7406\u65f6\u95f4\uff0c\u901a\u5e38\u5728 100ms \u4ee5\u5185\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u652f\u6301\u8ba2\u9605\u6a21\u5f0f\uff08MonitoredItem\uff09\u3002\u5ba2\u6237\u7aef\u6ce8\u518c\u5173\u5fc3\u7684\u6570\u636e\u70b9\uff0c\u8bbe\u5b9a\u91c7\u6837\u95f4\u9694\u548c\u89e6\u53d1\u6761\u4ef6\u3002\u53d8\u5316&gt;\u9608\u503c\u624d\u63a8\u9001\uff0c\u4e0d\u662f\u50bb\u8f6e\u8be2\u5168\u91cf\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u5982\u679c\u4f60\u7684\u62a5\u8b66\u54cd\u5e94\u65f6\u95f4\u8981\u6c42 &lt; 1 \u79d2\uff0cModbus \u8f6e\u8be2\u505a\u4e0d\u5230\uff0c\u9009 MQTT \u6216 OPC UA \u8ba2\u9605\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">3. \u5e26\u5bbd\u548c\u5ef6\u8fdf\uff1a\u7269\u7406\u5c42\u51b3\u5b9a\u4e0b\u9650<\/h3>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7269\u7406\u5c42<\/th><th>\u5178\u578b\u901f\u7387<\/th><th>\u9002\u5408\u573a\u666f<\/th><\/tr><\/thead><tbody><tr><td>RS-485 (Modbus RTU)<\/td><td>1200-115200 bps<\/td><td>\u672c\u5730\u603b\u7ebf\uff0c&lt;1200 \u7c73<\/td><\/tr><tr><td>\u4ee5\u592a\u7f51 (Modbus TCP)<\/td><td>100 Mbps<\/td><td>\u5de5\u5382\u5c40\u57df\u7f51<\/td><\/tr><tr><td>4G Cat.1<\/td><td>\u4e0a\u884c 5 Mbps<\/td><td>\u8fdc\u7a0b\u7ec8\u7aef\uff0c\u6709\u57fa\u7ad9\u8986\u76d6<\/td><\/tr><tr><td>NB-IoT<\/td><td>\u4e0a\u884c ~60 kbps<\/td><td>\u4f4e\u529f\u8017\u5e7f\u57df\uff0c\u65e5\u6570\u636e\u91cf &lt; 1KB \u7684\u573a\u666f<\/td><\/tr><tr><td>LoRa<\/td><td>0.3-50 kbps<\/td><td>\u8d85\u8fdc\u8ddd\u79bb\uff0c\u6781\u4f4e\u529f\u8017<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p class=\"wp-block-paragraph\">RS-485 \u7684 1200 \u7c73\u6781\u9650\u6211\u89c1\u8fc7\u80fd\u8fbe\u5230\u7684\u2014\u2014\u524d\u63d0\u662f\u9ad8\u8d28\u91cf\u5c4f\u853d\u53cc\u7ede\u7ebf\u30019600 bps\u3001\u53ea\u6709\u4e00\u53f0\u8bbe\u5907\u3001\u6ca1\u6709\u53d8\u9891\u5668\u5728\u65c1\u8fb9\u3002\u8f66\u95f4\u73b0\u573a\uff0c\u53d8\u9891\u5668\u4e00\u5f00\uff0c\u901a\u4fe1\u9519\u8bef\u7387\u98d9\u5347\uff0c\u4f60\u5c31\u5f97\u964d\u6ce2\u7279\u7387\u52a0\u5c4f\u853d\u52a0\u9694\u79bb\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">Modbus RTU \u5728 9600 bps \u4e0b\uff0c\u4f20\u8f93\u5bc6\u5ea6\u5927\u6982 800 \u5b57\u8282\/\u79d2\uff08\u53bb\u6389\u8d77\u59cb\u4f4d\u505c\u6b62\u4f4d\u5f00\u9500\uff09\u3002MQTT \u8d70 4G\uff0c\u51e0\u5341 KB \u4e0d\u662f\u95ee\u9898\u3002OPC UA \u7684\u4e8c\u8fdb\u5236\u7f16\u7801\u6548\u7387\u8fd8\u4e0d\u9519\uff0c\u4f46\u8fde\u63a5\u5efa\u7acb\u65f6\u7684\u8bc1\u4e66\u4ea4\u6362\u548c\u4f1a\u8bdd\u534f\u5546\u8981\u5403\u6389\u51e0\u767e KB\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u672c\u5730\u603b\u7ebf\uff0c\u5e26\u5bbd\u4e0d\u662f\u74f6\u9888\u3002\u8fdc\u7a0b\u63a5\u5165\uff0cModbus RTU \u4e0d\u76f4\u63a5\u8d70\u516c\u7f51\u2014\u2014\u4f60\u6ca1\u89c1\u8fc7\u6709\u4eba\u628a RS-485 \u7ebf\u4ece\u5317\u4eac\u62c9\u5230\u77f3\u5bb6\u5e84\u7684\u3002\u5fc5\u987b\u8fc7\u7f51\u5173\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">4. \u6570\u636e\u6a21\u578b\u590d\u6742\u5ea6\uff1a\u4ece\u5bc4\u5b58\u5668\u5230\u5bf9\u8c61<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u7684\u6570\u636e\u6a21\u578b\u53ea\u6709\u56db\u79cd\uff1a\u7ebf\u5708\uff08\u4f4d\uff09\u3001\u79bb\u6563\u8f93\u5165\uff08\u4f4d\uff09\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\uff0816 \u4f4d\u5b57\uff09\u3001\u8f93\u5165\u5bc4\u5b58\u5668\uff0816 \u4f4d\u5b57\uff09\u3002\u6ca1\u522b\u7684\u4e86\u3002\u6ca1\u6709\u6d6e\u70b9\u6570\u3001\u6ca1\u6709\u5b57\u7b26\u4e32\u3001\u6ca1\u6709\u65f6\u95f4\u6233\u3001\u6ca1\u6709\u6570\u7ec4\u7ed3\u6784\u4f53\u2014\u2014\u9664\u975e\u4f60\u81ea\u5df1\u5728\u591a\u4e2a\u5bc4\u5b58\u5668\u4e0a\u7f16\u7801\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u53f0\u53d8\u9891\u5668\u7684\u6570\u636e\uff1a\u8fd0\u884c\u72b6\u6001\uff08\u4f4d\uff09\u3001\u8bbe\u5b9a\u9891\u7387\uff08\u6d6e\u70b9\u6570\uff0c\u5360 2 \u4e2a\u5bc4\u5b58\u5668\uff09\u3001\u5b9e\u9645\u9891\u7387\uff08\u6d6e\u70b9\u6570\uff09\u3001\u8f93\u51fa\u7535\u6d41\uff08\u6d6e\u70b9\u6570\uff09\u3001\u6bcd\u7ebf\u7535\u538b\uff08\u6574\u6570\uff09\u3001\u8fd0\u884c\u65f6\u95f4\uff0832 \u4f4d\uff0c2 \u4e2a\u5bc4\u5b58\u5668\uff09\u3001\u62a5\u8b66\u4ee3\u7801\uff08\u4f4d\u63a9\u7801\uff09\u3002\u5168\u7528 Modbus \u5bc4\u5b58\u5668\u5b9e\u73b0\uff0c\u4f60\u9700\u8981\u7ef4\u62a4\u4e00\u4efd Excel \u8868\u683c\u8bb0\u5f55\u54ea\u4e2a\u5bc4\u5b58\u5668\u5bf9\u5e94\u4ec0\u4e48\u53c2\u6570\u3001\u7528\u4ec0\u4e48\u7f16\u7801\u3002\u6563\u843d\u5728\u5341\u53f0\u53d8\u9891\u5668\u4e0a\u5c31\u662f\u51e0\u767e\u4e2a\u5bc4\u5b58\u5668\u7684\u6620\u5c04\u8868\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u4e5f\u597d\u4e0d\u5230\u54ea\u53bb\u2014\u2014JSON \u81ea\u7531\u683c\u5f0f\uff0c\u4f46\u5404\u5382\u5bb6\u5bf9\u300c\u9891\u7387\u300d\u8fd9\u4e2a\u5b57\u6bb5\u53eb freqency\u3001freq\u3001Hz\u3001output_freq \u7684\u90fd\u6709\u3002\u6ca1\u6709\u6807\u51c6\uff0c\u4f60\u81ea\u5df1\u5b9a\u7ea6\u5b9a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u7684\u4fe1\u606f\u6a21\u578b\uff08IM\uff09\u4ece\u534f\u8bae\u5c42\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\uff1a\u6bcf\u4e2a\u6570\u636e\u70b9\u6709 Type\u3001Unit\u3001Range\u3001EngineeringUnits\u3002\u4e00\u4e2a MotorType \u5bf9\u8c61\u4e0b\u9762\u6709 Current\u3001Temperature\u3001Speed\u2014\u2014\u81ea\u5e26\u8bed\u4e49\uff0c\u4e0d\u662f\u88f8\u5bc4\u5b58\u5668\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u6570\u636e\u70b9 &lt; 50 \u4e2a\u3001\u7c7b\u578b\u7b80\u5355\uff08\u5168\u662f\u6574\u6570\/\u5f00\u5173\u91cf\uff09\uff0cModbus \u5bc4\u5b58\u5668\u6620\u5c04\u5b8c\u5168\u591f\u7528\u3002\u8d85\u8fc7 200 \u4e2a\u70b9\u3001\u6d89\u53ca\u590d\u6742\u5bf9\u8c61\u6a21\u578b\uff0cOPC UA \u5e2e\u4f60\u7701\u6389\u4e00\u534a\u7684\u6587\u6863\u7ef4\u62a4\u5de5\u4f5c\u91cf\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">5. \u5b89\u5168\u6027\uff1a\u8c01\u5728\u88f8\u5954<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u7684\u8bbe\u8ba1\u5e74\u4ee3\uff081979 \u5e74\uff09\u6ca1\u4eba\u8003\u8651\u7f51\u7edc\u5b89\u5168\u3002RTU \u5e27\u4e0a\u6ca1\u6709\u8ba4\u8bc1\u5b57\u6bb5\uff0c\u4efb\u4f55\u63a5\u5165 RS-485 \u603b\u7ebf\u7684\u8bbe\u5907\u90fd\u80fd\u53d1\u547d\u4ee4\u2014\u2014\u5173\u6cf5\u3001\u6539\u53c2\u6570\u3001\u5199\u5bc4\u5b58\u5668\u3002TCP \u7248\u672c\u591a\u4e86\u4e00\u5c42 TCP \u8fde\u63a5\uff0c\u4f46\u4e5f\u6ca1\u6709\u5185\u7f6e TLS\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u53ef\u4ee5\u901a\u8fc7 TLS \u52a0\u5bc6\u4f20\u8f93\uff0cUsername\/Password \u8ba4\u8bc1\uff0cBroker \u7aef\u8fd8\u80fd\u505a ACL \u63a7\u5236\u54ea\u4e9b\u5ba2\u6237\u7aef\u80fd\u53d1\u5e03\/\u8ba2\u9605\u54ea\u4e9b\u4e3b\u9898\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u7684\u5b89\u5168\u6a21\u578b\u662f\u4e09\u4ef6\u5957\uff1a\u8bc1\u4e66\u8ba4\u8bc1\uff08X.509\uff09+ \u6d88\u606f\u7b7e\u540d + \u6d88\u606f\u52a0\u5bc6\u3002\u8fd8\u652f\u6301\u7528\u6237\u4ee4\u724c\uff08\u7528\u6237\u540d\u5bc6\u7801\/\u8bc1\u4e66\/\u533f\u540d\uff09\u3002\u4ece\u8fde\u63a5\u5efa\u7acb\u5230\u6570\u636e\u4f20\u8f93\uff0c\u5168\u94fe\u8def\u52a0\u5bc6\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u6709\u4e00\u6b21\u6211\u53bb\u67d0\u6c34\u5382\u505a\u6392\u67e5\uff0c\u53d1\u73b0\u4ed6\u4eec\u7684 Modbus TCP \u7f51\u5173\u516c\u7f51\u7aef\u53e3\u5f00\u7740\uff0c\u626b\u8fdb\u53bb\u5c31\u80fd\u76f4\u63a5\u5199\u53d8\u9891\u5668\u542f\u505c\u5bc4\u5b58\u5668\u3002\u6ca1\u5f00\u73a9\u7b11\uff0c\u8fd9\u79cd\u4e8b\u5728\u4e2d\u5c0f\u4f01\u4e1a\u975e\u5e38\u591a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u516c\u7f51\u4f20\u8f93\u3001\u8fdc\u7a0b\u8fd0\u7ef4\u3001\u6d89\u53ca\u5173\u952e\u57fa\u7840\u8bbe\u65bd\u7684\u573a\u666f\u2014\u2014\u522b\u7528\u88f8 Modbus\u3002\u81f3\u5c11\u8981\u8fc7 MQTT+TLS \u7684\u7f51\u5173\u3002\u5982\u679c\u5df2\u7ecf\u6709 OPC UA \u80fd\u529b\uff0c\u76f4\u63a5\u7528\u5b83\u7684\u5b89\u5168\u901a\u9053\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">6. \u4e92\u64cd\u4f5c\u6027\uff1a\u548c\u8c01\u5bb6\u7684\u8bbe\u5907\u8bf4\u8bdd<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7406\u60f3\u60c5\u51b5\u662f\u6240\u6709\u8bbe\u5907\u90fd\u8dd1\u540c\u4e00\u79cd\u534f\u8bae\u2014\u2014\u4f60\u897f\u95e8\u5b50\u6211\u65bd\u8010\u5fb7\u4ed6 AB\uff0c\u90fd\u7528 Profinet \u5c31\u5b8c\u4e86\u3002\u73b0\u5b9e\u4e0d\u662f\u8fd9\u6837\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u7684\u4f18\u52bf\u6070\u6070\u5728\u8fd9\u91cc\uff1a\u51e0\u4e4e\u6240\u6709 PLC \u90fd\u652f\u6301 Modbus RTU\/TCP\uff0c\u4e0d\u7ba1\u662f\u897f\u95e8\u5b50 S7-1200 \u7684 CM1241 \u6a21\u5757\u8fd8\u662f\u4e09\u83f1 FX \u7cfb\u5217\u7684 RS-485 \u53e3\u3002\u8bbe\u5907\u5382\u5546\u4e5f\u4e50\u610f\u652f\u6301\u2014\u2014\u4e0d\u7528\u4ed8\u7248\u7a0e\uff0c\u5b9e\u73b0\u7b80\u5355\uff0c\u51e0\u5929\u5c31\u80fd\u8c03\u901a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u7684\u4e92\u64cd\u4f5c\u6027\u9760\u7ea6\u5b9a\u4e3b\u9898\u7ed3\u6784\u548c JSON \u683c\u5f0f\u3002\u4f46\u5404\u5bb6\u7684\u7ea6\u5b9a\u53ef\u80fd\u4e0d\u540c\u3002**Sparkplug B \u89c4\u8303**\u8865\u4e86\u8fd9\u4e2a\u5751\u2014\u2014\u5b9a\u4e49\u4e86\u6807\u51c6\u4e3b\u9898\u547d\u540d\u7a7a\u95f4\u3001\u6570\u636e\u7c7b\u578b\u7f16\u7801\u3001\u8bbe\u5907\u51fa\u751f\/\u6b7b\u4ea1\u6d88\u606f\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u7684\u4e92\u64cd\u4f5c\u6027\u662f\u534f\u8bae\u5185\u7f6e\u7684\uff1a\u914d\u5957\u89c4\u8303\uff08Companion Specification\uff09\u8986\u76d6\u4e86\u673a\u5668\u4eba\u3001\u6ce8\u5851\u673a\u3001CNC\u3001\u98ce\u529b\u53d1\u7535\u7b49\u51e0\u5341\u4e2a\u884c\u4e1a\u3002\u897f\u95e8\u5b50\u7684 OPC UA Server \u548c\u7f57\u514b\u97e6\u5c14\u7684 OPC UA Client \u80fd\u76f4\u63a5\u5bf9\u8bdd\uff0c\u4e0d\u9700\u8981\u5199\u6620\u5c04\u5c42\u4ee3\u7801\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u8bdd\u8bf4\u56de\u6765\uff1aOPC UA \u7684\u914d\u5957\u89c4\u8303\u8fd8\u5728\u53d1\u5c55\u4e2d\uff0c\u4e0d\u662f\u6240\u6709\u8bbe\u5907\u90fd\u652f\u6301\u3002\u6709\u4e9b\u5382\u5546\u7684 OPC UA \u5b9e\u73b0\u5c31\u662f\u4e2a\u76ae\u5305\u2014\u2014\u7ed3\u70b9\u80fd\u6d4f\u89c8\uff0c\u5b9e\u9645\u6570\u636e\u66f4\u65b0\u9891\u7387\u8ddf\u4e0d\u4e0a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u548c\u591a\u79cd\u54c1\u724c PLC\/DCS \u4e92\u64cd\u4f5c\u662f\u786c\u9700\u6c42\u2192OPC UA\u3002\u8bbe\u5907\u5168\u662f\u56fd\u4ea7\u7535\u8868\/\u4f20\u611f\u5668\u2192Modbus RTU \u5c31\u591f\u3002\u9700\u8981\u4e91\u5e73\u53f0\u5bf9\u63a5\u2192MQTT\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">7. \u5f00\u53d1\u5468\u671f\u548c\u56e2\u961f\u6280\u80fd<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u88ab\u4e25\u91cd\u4f4e\u4f30\u7684\u4e00\u6761\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u5f00\u53d1\uff1a\u627e\u4e2a\u4e32\u53e3\u5e93\uff0c\u53d1 8 \u5b57\u8282\uff0c\u6536 7 \u5b57\u8282\uff0c\u8c03\u4e24\u5929\uff0c\u901a\u4e86\u3002\u534f\u8bae\u6808\u4ee3\u7801\u91cf\u51e0\u767e\u884c\u3002\u4f60\u7528 Python \u7684 pymodbus \u6216\u8005 C# \u7684 NModbus\uff0c\u4e0a\u5348\u88c5\u5305\u4e0b\u5348\u5c31\u80fd\u8bfb\u5199\u5bc4\u5b58\u5668\u3002\u4e09\u5929\u4e4b\u5185\u505a\u5b8c\u4e00\u4e2a Modbus \u4e3b\u7ad9\u9a71\u52a8\u7684\u5de5\u7a0b\u5e08\u5927\u6709\u4eba\u5728\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u5f00\u53d1\uff1a\u88c5\u4e2a paho-mqtt \u5e93\uff0cBroker \u5730\u5740\u3001\u7aef\u53e3\u3001\u4e3b\u9898\uff0c\u4e09\u884c\u4ee3\u7801\u8fde\u4e0a\u3002\u53d1\u5e03\/\u8ba2\u9605\u5404\u4e24\u884c\u3002\u4e00\u5929\u4e0a\u624b\u3002Broker \u90e8\u7f72\uff08Mosquitto\/EMQX\uff09\u534a\u5c0f\u65f6\u641e\u5b9a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u5f00\u53d1\uff1a\u8fd9\u4ef6\u4e8b\u6211\u8981\u8bf4\u5b9e\u8bdd\u2014\u2014\u4e0d\u7b80\u5355\u3002\u5730\u5740\u7a7a\u95f4\u5efa\u6a21\u3001\u8bc1\u4e66\u7ba1\u7406\u3001\u5b89\u5168\u7b56\u7565\u914d\u7f6e\u3001\u8ba2\u9605\/\u65b9\u6cd5\u8c03\u7528\uff0c\u5b66\u4e60\u66f2\u7ebf\u6bd4\u524d\u4e24\u8005\u9661\u5f97\u591a\u3002\u4f60\u7528 UAExpert \u5ba2\u6237\u7aef\u8fde\u4e0a Server \u662f\u4e00\u56de\u4e8b\uff0c\u81ea\u5df1\u5199\u4e00\u4e2a\u5b8c\u6574\u7684 OPC UA Server \u662f\u53e6\u4e00\u56de\u4e8b\u3002\u5de5\u4e1a\u4e0a\u901a\u5e38\u7528 KepServerEx\u3001Siemens OPC UA Server \u8fd9\u4e9b\u6210\u719f\u4ea7\u54c1\uff0c\u8c03 SDK \u7684\u5c45\u591a\uff0c\u4ece\u5934\u5199\u7684\u4e0d\u591a\u3002\u4e00\u4e2a\u56e2\u961f\u5982\u679c\u6ca1\u6709 OPC UA \u7ecf\u9a8c\uff0c\u9884\u7559 2-4 \u5468\u505a\u6280\u672f\u9a8c\u8bc1\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a3 \u5929\u5f00\u53d1\u2192Modbus\u30021 \u5929\u5f00\u53d1\u2192MQTT\u3002\u6709\u4e13\u4eba\u4e14\u9879\u76ee\u5141\u8bb8\u5b66\u4e60\u6210\u672c\u2192OPC UA\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">8. \u786c\u4ef6\u6210\u672c\uff1a\u82af\u7247\u7ea7\u7684\u4ef7\u683c\u5dee<\/h3>\n\n\n<p class=\"wp-block-paragraph\">RS-485 \u6536\u53d1\u5668\uff08MAX485\/SP3485\uff09\u6279\u91cf\u4ef7\u4e0d\u5230 1 \u5757\u94b1\u4eba\u6c11\u5e01\u3002\u52a0\u4e0a\u4e24\u4e2a 120\u03a9 \u7ec8\u7aef\u7535\u963b\u3001\u4e00\u4e2a TVS \u4fdd\u62a4\u7ba1\uff0cBOM \u6210\u672c 3 \u5757\u94b1\u4ee5\u5185\u3002STM32F103 \u5355\u7247\u673a\u7684 UART \u5916\u8bbe\u76f4\u63a5\u9a71\u52a8\uff0c\u8fde\u5916\u90e8 PHY \u90fd\u4e0d\u9700\u8981\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u7684\u6700\u5c0f\u786c\u4ef6\u9700\u6c42\uff1a\u7f51\u7edc\u6808\uff08WiFi\/Ethernet\/4G \u6a21\u5757\uff09+ TCP\/IP \u534f\u8bae\u6808\u3002ESP32 \u81ea\u5e26 WiFi+BLE\uff0c\u6279\u91cf\u4ef7\u5927\u6982 12-15 \u5757\uff0c\u8dd1 FreeRTOS+LwIP+paho MQTT \u6beb\u65e0\u538b\u529b\u3002\u5982\u679c\u662f 4G \u6a21\u7ec4\uff08\u5408\u5b99 Air724UG \u5927\u6982 20 \u5757\uff09\uff0c\u4e5f\u80fd\u8dd1 MQTT AT \u6307\u4ee4\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u5bf9\u786c\u4ef6\u6709\u8981\u6c42\u3002\u4e00\u4e2a\u6700\u5c0f OPC UA Server\uff08\u652f\u6301\u5b89\u5168\u7b56\u7565 Basic256Sha256\u3001\u652f\u6301 1000 \u4e2a\u53d8\u91cf\u8282\u70b9\uff09\u5927\u6982\u9700\u8981 256KB RAM + 512KB Flash\u3002\u4f60\u53ef\u4ee5\u5728 STM32H7\uff08Cortex-M7, ~30 \u5757\uff09\u4e0a\u8dd1 open62541 \u7684 embedded \u7248\u672c\uff0c\u4f46\u4e0d\u662f\u300c\u70b9\u4e2a\u706f\u300d\u90a3\u4e48\u7b80\u5355\u3002\u5de5\u4e1a\u7ea7 OPC UA \u7f51\u5173\u901a\u5e38\u7528 ARM Cortex-A \u7cfb\u5217\u7684 Linux \u677f\uff08\u6bd4\u5982\u5168\u5fd7 T113-i\uff0c\u56db\u4e94\u5341\u5757\u8d77\uff09\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u534f\u8bae<\/th><th>MCU \u4ef7\u683c\u533a\u95f4<\/th><th>\u5178\u578b\u786c\u4ef6\u5e73\u53f0<\/th><\/tr><\/thead><tbody><tr><td>Modbus RTU<\/td><td>\u00a53-10<\/td><td>STM32F103 \/ GD32<\/td><\/tr><tr><td>MQTT (WiFi)<\/td><td>\u00a512-20<\/td><td>ESP32<\/td><\/tr><tr><td>MQTT (4G)<\/td><td>\u00a525-40<\/td><td>\u5408\u5b99 Air724UG + MCU<\/td><\/tr><tr><td>OPC UA (\u8f7b\u91cf)<\/td><td>\u00a530-80<\/td><td>STM32H7 \/ i.MX RT<\/td><\/tr><tr><td>OPC UA (\u5b8c\u6574)<\/td><td>\u00a580-200<\/td><td>\u5168\u5fd7\/\u745e\u82af\u5fae Linux \u677f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u505a\u4e00\u4e2a\u552e\u4ef7 50 \u5757\u7684 Modbus RTU \u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\uff0c\u6362 OPC UA \u65b9\u6848\u786c\u4ef6\u6210\u672c\u5c31\u515c\u4e0d\u4f4f\u3002\u505a\u4e00\u53f0\u552e\u4ef7 5000 \u7684\u5de5\u4e1a\u7f51\u5173\uff0cOPC UA \u7684\u90a3\u70b9\u786c\u4ef6\u6210\u672c\u6839\u672c\u4e0d\u662f\u4e8b\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">9. \u4e91\u63a5\u5165\uff1a\u534f\u8bae\u7684\u5929\u751f\u57fa\u56e0<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u662f\u4e3a\u672c\u5730\u603b\u7ebf\u8bbe\u8ba1\u7684\u3002\u4f60\u4e0d\u53ef\u80fd\u76f4\u63a5\u628a RS-485 \u603c\u5230\u963f\u91cc\u4e91 IoT \u5e73\u53f0\u4e0a\u3002\u5fc5\u987b\u8fc7\u7f51\u5173\u2014\u2014Modbus RTU \u2192 \u7f51\u5173\uff08\u505a\u534f\u8bae\u8f6c\u6362\uff09\u2192 MQTT\/HTTP \u2192 \u4e91\u7aef\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u5929\u7136\u9002\u5408\u4e91\u63a5\u5165\u3002AWS IoT Core\u3001\u963f\u91cc\u4e91 IoT\u3001EMQX Cloud\u3001ThingsBoard\u2014\u2014\u6240\u6709\u4e3b\u6d41 IoT \u5e73\u53f0\u7684\u7b2c\u4e00\u516c\u6c11\u90fd\u662f MQTT\u3002\u4e3b\u9898\u8def\u7531\u7075\u6d3b\uff0c\u9057\u5631\u6d88\u606f\uff08Last Will\uff09\u89e3\u51b3\u8bbe\u5907\u79bb\u7ebf\u68c0\u6d4b\uff0c\u4fdd\u7559\u6d88\u606f\uff08Retained\uff09\u786e\u4fdd\u65b0\u4e0a\u7ebf\u7684\u8ba2\u9605\u8005\u7acb\u523b\u62ff\u5230\u6700\u65b0\u72b6\u6001\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u7684 Client\/Server \u6a21\u5f0f\u4e0d\u592a\u9002\u5408\u4e91\u2014\u2014\u5e7f\u57df\u7f51\u5ef6\u8fdf\u9ad8\uff0cUA \u7684\u5b89\u5168\u63e1\u624b\u548c\u4f1a\u8bdd\u7ba1\u7406\u5403\u4e0d\u6d88\u3002\u4f46 OPC UA \u6709\u4e00\u4e2a Pub\/Sub \u6269\u5c55\uff082018 \u5e74\u53d1\u5e03\uff09\uff0c\u652f\u6301 UDP \u591a\u64ad\u548c MQTT Broker \u4f20\u8f93\uff0c\u4e13\u95e8\u89e3\u51b3\u4e91\u63a5\u5165\u95ee\u9898\u3002\u4e0d\u8fc7\u76ee\u524d\u5b9e\u9645\u90e8\u7f72\u7684 OPC UA Pub\/Sub \u6848\u4f8b\u8fd8\u4e0d\u591a\uff0c\u66f4\u591a\u662f OPC UA Server \u2192 \u8fb9\u7f18\u7f51\u5173 \u2192 MQTT \u2192 \u4e91\u7684\u95f4\u63a5\u8def\u7ebf\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u4f60\u7684\u6570\u636e\u7ec8\u70b9\u662f\u4e91\u7aef\u2192MQTT\uff0c\u522b\u72b9\u8c6b\u3002\u672c\u5730 SCADA\/Historian\u2192OPC UA\u3002\u65e2\u4e0a\u4e91\u53c8\u672c\u5730\u76d1\u63a7\u2192MQTT+OPC UA \u7ec4\u5408\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">10. \u5386\u53f2\u9057\u7559\uff1a\u6539\u4e0d\u52a8\u5c31\u522b\u6539<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5e38\u89c1\u7684\u573a\u666f\uff1a\u4e00\u4e2a\u6c61\u6c34\u5904\u7406\u5382\uff0c200 \u53f0 Modbus RTU \u7535\u8868\uff08\u5a01\u80dc\/\u79d1\u9646\/\u6797\u6d0b\uff09\uff0c\u5df2\u7ecf\u5728 RS-485 \u603b\u7ebf\u4e0a\u8dd1\u4e86\u4e94\u5e74\u3002\u4f60\u73b0\u5728\u8981\u4e0a\u4e91\u505a\u80fd\u8017\u7ba1\u7406\u5e73\u53f0\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u628a\u8fd9 200 \u53f0\u7535\u8868\u5168\u6362\u4e86\uff1f\u4e0d\u73b0\u5b9e\u3002\u9884\u7b97\u662f\u4e00\u56de\u4e8b\uff0c\u5173\u952e\u662f\u5b83\u4eec\u6839\u672c\u6ca1\u574f\u3002\u7528 Modbus-MQTT \u7f51\u5173\u662f\u6700\u5408\u7406\u7684\u65b9\u6848\uff1a\u7535\u8868\u7ee7\u7eed\u8dd1 Modbus RTU\uff0c\u7f51\u5173\u505a\u8f6e\u8be2\u91c7\u96c6\uff0c\u6570\u636e\u6253\u5305\u6210 JSON \u8d70 MQTT \u4e0a\u4e91\u3002\u7535\u8868\u8fd9\u7aef\u662f\u7a33\u7a33\u5f53\u5f53\u7684 Modbus\uff0c\u4e91\u7aef\u662f\u73b0\u4ee3 IoT \u67b6\u6784\u2014\u2014\u4e24\u5934\u90fd\u4e0d\u5403\u4e8f\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\u9053\u7406\uff1a\u67d0\u6c7d\u8f66\u5382\u7684\u6d82\u88c5\u8f66\u95f4\u6709 50 \u53f0 AB PLC\uff0c\u5168\u8dd1 EtherNet\/IP\u3002\u4f60\u60f3\u52a0\u4e00\u4e2a MES \u7cfb\u7edf\uff0c\u8ba9\u8fd9\u4e9b PLC \u7684\u6570\u636e\u80fd\u88ab MES \u8bfb\u5230\u3002\u65b9\u6848 A\uff1a\u6bcf\u53f0 PLC \u914d Modbus TCP \u6a21\u5757\u3002\u65b9\u6848 B\uff1a\u52a0\u4e00\u53f0 KepServer \/ Ignition \u7684 OPC UA \u7f51\u5173\uff0c\u805a\u5408 EtherNet\/IP \u7684\u6570\u636e\u540e\u66b4\u9732 OPC UA \u63a5\u53e3\u3002\u65b9\u6848 B \u4e0d\u6539\u73b0\u573a\u8bbe\u5907\u4e00\u6839\u7ebf\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u5df2\u6709\u8bbe\u5907\u8dd1\u4ec0\u4e48\u534f\u8bae\u5c31\u5c0a\u91cd\u4ec0\u4e48\u534f\u8bae\u3002\u7528\u7f51\u5173\u505a\u6865\u63a5\uff0c\u4e0d\u8981\u60f3\u7740\u628a\u73b0\u6709\u8bbe\u5907\u5168\u5347\u7ea7\u2014\u2014\u90a3\u662f\u94b1\u591a\u70e7\u7684\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">11. \u8bbe\u5907\u53d1\u73b0\uff1a\u8c01\u77e5\u9053\u603b\u7ebf\u4e0a\u6709\u4ec0\u4e48<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u6ca1\u6709\u8bbe\u5907\u53d1\u73b0\u673a\u5236\u3002\u4f60\u8981\u77e5\u9053\u4ece\u7ad9\u5730\u5740 1 \u5230 247 \u4e0a\u5230\u5e95\u6302\u4e86\u54ea\u4e9b\u8bbe\u5907\uff1f\u552f\u4e00\u7684\u65b9\u6cd5\uff1a\u6328\u4e2a\u53d1\u529f\u80fd\u7801 03\uff08\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\uff09\u6216 08\uff08\u8bca\u65ad\uff09\uff0c\u7b49\u56de\u5e94\u3002\u8d85\u65f6\u4e0d\u56de\u5c31\u8ba4\u4e3a\u6ca1\u8bbe\u5907\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u53eb\u300c\u5730\u5740\u626b\u63cf\u300d\u2014\u2014\u5728 9600 bps \u4e0b\u626b\u5b8c 247 \u4e2a\u5730\u5740\u9700\u8981\u51e0\u5341\u79d2\uff0c\u800c\u4e14\u67d0\u4e9b\u8bbe\u5907\u5bf9\u672a\u77e5\u5bc4\u5b58\u5668\u7684\u8bfb\u53d6\u4f1a\u62a5\u5f02\u5e38\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u672c\u8eab\u4e5f\u6ca1\u6709\u8bbe\u5907\u53d1\u73b0\u3002\u8bbe\u5907\u4e0a\u7ebf\u53d1\u4e00\u6761\u6d88\u606f\u5230\u7279\u5b9a\u4e3b\u9898\uff0c\u4f46\u8fd9\u9760\u7684\u662f\u7ea6\u5b9a\u7684\u4e1a\u52a1\u903b\u8f91\uff0c\u4e0d\u662f\u534f\u8bae\u5c42\u9762\u7684\u673a\u5236\u3002Sparkplug B \u89c4\u8303\u52a0\u4e86\u8bbe\u5907\u51fa\u751f\/\u6b7b\u4ea1\u6d88\u606f\uff0c\u4f46\u9700\u8981\u63a5\u6536\u65b9\u4e3b\u52a8\u76d1\u542c\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u5185\u7f6e\u4e86\u53d1\u73b0\u670d\u52a1\uff08Discovery Server\uff0c\u9ed8\u8ba4\u7aef\u53e3 4840\uff09\u3002\u5ba2\u6237\u7aef\u8fde\u63a5 Discovery Server\uff0c\u95ee\u300c\u4f60\u4e0b\u9762\u6ce8\u518c\u4e86\u54ea\u4e9b Server\u300d\uff0c\u62ff\u5230\u5217\u8868\u548c\u7aef\u70b9 URL\uff0c\u518d\u53bb\u8fde\u63a5\u3002\u5c40\u57df\u7f51\u5185\u8fd8\u80fd\u7528 mDNS\uff08\u7ec4\u64ad DNS\uff09\u81ea\u52a8\u53d1\u73b0 OPC UA Server\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u8bbe\u5907\u7ecf\u5e38\u6362\u3001\u7f51\u7edc\u62d3\u6251\u52a8\u6001\u53d8\u5316\u2192OPC UA \u7684\u53d1\u73b0\u670d\u52a1\u7701\u4f60\u5f88\u591a\u914d\u7f6e\u65f6\u95f4\u3002\u8bbe\u5907\u56fa\u5b9a\u4e0d\u53d8\u3001\u88c5\u4e86\u5c31\u4e0d\u52a8\u2192Modbus \u624b\u52a8\u914d\u4e00\u904d\u4e5f\u4e0d\u788d\u4e8b\u3002**<\/p>\n\n\n<h3 class=\"wp-block-heading\">12. \u56fa\u4ef6\u5347\u7ea7\u548c\u914d\u7f6e\u7ba1\u7406<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u53ea\u5b9a\u4e49\u4e86\u6570\u636e\u8bfb\u5199\u3002\u56fa\u4ef6\u5347\u7ea7\uff1f\u6ca1\u6709\u6807\u51c6\u529f\u80fd\u7801\u3002\u6709\u4e9b\u5382\u5546\u7528\u529f\u80fd\u7801 0x41-0xFF \u7684\u81ea\u5b9a\u4e49\u533a\u5b9e\u73b0\uff0c\u4f46\u6bcf\u5bb6\u90fd\u4e0d\u4e00\u6837\uff0c\u4e92\u76f8\u4e0d\u901a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">MQTT \u540c\u7406\u2014\u2014\u4f20\u8f93\u56fa\u4ef6\u5305\u53ef\u4ee5\uff0c\u4f46\u683c\u5f0f\u548c\u6d41\u7a0b\u4f60\u81ea\u5df1\u5b9a\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">OPC UA \u6709\u6807\u51c6\u7684\u65b9\u6cd5\u8c03\u7528\uff08Method Call\uff09\u3002\u4f60\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u300c\u5347\u7ea7\u56fa\u4ef6\u300d\u65b9\u6cd5\uff0c\u63a5\u53d7\u56fa\u4ef6\u6587\u4ef6 URL \u548c\u7248\u672c\u53f7\u53c2\u6570\uff0c\u8fd4\u56de\u5347\u7ea7\u8fdb\u5ea6\u548c\u7ed3\u679c\u3002Device Integration \u914d\u5957\u89c4\u8303\uff08DI\uff09\u8fd8\u5b9a\u4e49\u4e86\u6807\u51c6\u7684\u8bbe\u5907\u7ba1\u7406\u6a21\u578b\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">**\u7ed3\u8bba\uff1a\u6279\u91cf\u8bbe\u5907\u56fa\u4ef6\u5347\u7ea7\u662f\u6838\u5fc3\u9700\u6c42\u2192OPC UA \u7684\u65b9\u6cd5\u8c03\u7528\u6bd4\u4f60\u81ea\u521b\u4e00\u5957\u534f\u8bae\u9760\u8c31\u3002\u5076\u5c14\u5347\u7ea7\u3001\u73b0\u573a\u4eba\u5458 USB \u7ebf\u603c\u4e0a\u53bb\u5c31\u884c\u2192Modbus \u591f\u7528\u3002**<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u51b3\u7b56\u8def\u5f84\uff0c\u8d70\u4e00\u904d<\/h2>\n\n\n<pre class=\"wp-block-code\"><code>\u4f60\u7684\u9879\u76ee\n\u2502\n\u251c\u2500\u2500 \u8bbe\u5907\u6570\u91cf &gt; 100\uff1f\n\u2502   \u251c\u2500\u2500 \u662f \u2500\u2500\u2192 \u9700\u8981\u4e8b\u4ef6\u9a71\u52a8\uff08\u62a5\u8b66 &lt; 1s \u54cd\u5e94\uff09\uff1f\n\u2502   \u2502         \u251c\u2500\u2500 \u662f \u2500\u2500\u2192 \u9700\u8981\u591a\u79cd\u54c1\u724c\u4e92\u64cd\u4f5c\uff1f\n\u2502   \u2502         \u2502         \u251c\u2500\u2500 \u662f \u2500\u2500\u2192 \u3010OPC UA\u3011\n\u2502   \u2502         \u2502         \u2514\u2500\u2500 \u5426 \u2500\u2500\u2192 \u3010MQTT\u3011\n\u2502   \u2502         \u2514\u2500\u2500 \u5426 \u2500\u2500\u2192 \u3010Modbus TCP\u3011\uff08\u914d\u9ad8\u6027\u80fd\u4e3b\u7ad9\uff0c\u8f6e\u8be2\u5468\u671f\u53ef\u63a5\u53d7\uff09\n\u2502   \u2502\n\u2502   \u2514\u2500\u2500 \u5426 \u2500\u2500\u2192 \u9700\u8981\u4e0a\u4e91\uff1f\n\u2502              \u251c\u2500\u2500 \u662f \u2500\u2500\u2192 \u3010MQTT\u3011\n\u2502              \u2514\u2500\u2500 \u5426 \u2500\u2500\u2192 \u516c\u7f51\u4f20\u8f93 \/ \u9700\u8981\u5b89\u5168\uff1f\n\u2502                        \u251c\u2500\u2500 \u662f \u2500\u2500\u2192 \u3010OPC UA \/ MQTT+TLS\u3011\n\u2502                        \u2514\u2500\u2500 \u5426 \u2500\u2500\u2192 \u3010Modbus RTU\u3011\n\u2502                                  \u6700\u7b80\u5355\u7684\u65b9\u6848\u6c38\u8fdc\u6700\u597d<\/code><\/pre>\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u662f\u6240\u6709\u573a\u666f\u90fd\u8d70\u5230\u5e95\u9009\u4e00\u79cd\u534f\u8bae\u3002\u5927\u591a\u6570\u65f6\u5019\u4f60\u9009\u7684\u662f\u7ec4\u5408\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u6df7\u5408\u67b6\u6784\uff1a\u771f\u5b9e\u9879\u76ee\u7684\u73a9\u6cd5<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u7ecf\u5178\u7ec4\u5408\uff1aModbus RTU \u2192 \u7f51\u5173 \u2192 MQTT \u2192 \u4e91<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u5e95\u5c42\u7535\u8868\u3001\u4f20\u611f\u5668\u8dd1 Modbus RTU\uff0c\u7528\u4e00\u53f0\u5d4c\u5165\u5f0f\u7f51\u5173\uff08\u6bd4\u5982\u534e\u4e3a AR650\u3001\u6620\u7ff0\u901a IG902\u3001\u6216\u8005\u4f60\u81ea\u5df1\u7528\u6811\u8393\u6d3e+Node-RED \u6512\u7684\uff09\u505a\u534f\u8bae\u8f6c\u6362\uff1a<\/p>\n\n\n<pre class=\"wp-block-code\"><code>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510  RS-485    \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510  MQTT\/TLS  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 \u7535\u8868 \u00d750 \u2502\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192\u2502  Modbus- \u2502\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192\u2502 \u4e91 IoT \u5e73\u53f0  \u2502\n\u2502 Modbus   \u2502  Modbus RTU\u2502  MQTT \u7f51\u5173\u2502            \u2502 (Ali\/AWS)   \u2502\n\u2502 RTU      \u2502            \u2502          \u2502            \u2502             \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518            \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518            \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/code><\/pre>\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u5173\u505a\u4e24\u4ef6\u4e8b\uff1a\u8f6e\u8be2\u91c7\u96c6 50 \u53f0\u7535\u8868\u7684\u7535\u538b\/\u7535\u6d41\/\u529f\u7387\/\u7535\u80fd\uff0c\u6309\u4e00\u5206\u949f\u95f4\u9694\u6253\u5305\u6210 JSON\uff0c\u8d70 MQTT \u53d1\u5e03\u5230\u4e91\u7aef\u3002\u7535\u8868\u4e0d\u6362\uff0c\u4e91\u7aef\u662f\u73b0\u4ee3\u7684\u3002\u8fd9\u79cd\u67b6\u6784\u5728\u5206\u5e03\u5f0f\u5149\u4f0f\u76d1\u63a7\u548c\u80fd\u8017\u7ba1\u7406\u5e73\u53f0\u4e0a\u5df2\u7ecf\u88ab\u9a8c\u8bc1\u65e0\u6570\u6b21\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">OPC UA \u4f5c\u4e3a\u805a\u5408\u5c42<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u5de5\u5382\u91cc 50 \u53f0 Modbus TCP \u4ece\u7ad9\uff08\u5206\u5e03\u5728\u4e94\u4e2a\u8f66\u95f4\uff09\uff0c\u4e0a\u5c42 MES \u8981\u7edf\u4e00\u53d6\u6570\u636e\u3002\u4e2d\u95f4\u653e\u4e00\u53f0 OPC UA Server \u7f51\u5173\uff0c\u8dd1 KepServer \u6216\u8005\u81ea\u5df1\u7528 open62541 \u5199\u7684\u7a0b\u5e8f\uff1a<\/p>\n\n\n<pre class=\"wp-block-code\"><code>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502   MES \u7cfb\u7edf  \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n      \u2502 OPC UA Client\n      \u25bc\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502  OPC UA Server   \u2502 \u25c4\u2500\u2500 \u805a\u5408\u7f51\u5173\n\u2502  (KepServerEx\u7b49) \u2502\n\u2514\u2500\u2500\u252c\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u252c\u2500\u2500\u2518\n   \u2502   \u2502   \u2502   \u2502  Modbus TCP\n   \u25bc   \u25bc   \u25bc   \u25bc\n  50\u53f0 Modbus TCP \u4ece\u7ad9 (PLC\/\u4eea\u8868)<\/code><\/pre>\n\n\n<p class=\"wp-block-paragraph\">\u597d\u5904\uff1aMES \u53ea\u5bf9\u63a5\u4e00\u4e2a OPC UA \u63a5\u53e3\uff0c\u4e0d\u7528\u5173\u5fc3\u6bcf\u53f0\u8bbe\u5907\u7684 IP \u5730\u5740\u548c\u5bc4\u5b58\u5668\u6620\u5c04\u3002\u7f51\u5173\u5185\u90e8\u505a\u4e86\u6570\u636e\u805a\u5408\u548c\u5730\u5740\u7a7a\u95f4\u5efa\u6a21\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">\u53cc\u901a\u9053\uff1aMQTT \u4e0a\u62a5 + Modbus TCP \u672c\u5730\u63a7\u5236<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u67d0\u667a\u6167\u519c\u4e1a\u5927\u68da\uff1a50 \u4e2a LoRa \u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u901a\u8fc7 LoRa \u7f51\u5173\u2192MQTT \u4e0a\u62a5\u5230\u4e91\u5e73\u53f0\u505a\u8d8b\u52bf\u5206\u6790\u3002\u540c\u65f6\u5927\u68da\u91cc\u7684\u98ce\u673a\u3001\u5377\u5e18\u7535\u673a\u8d70 Modbus TCP\uff0c\u672c\u5730\u89e6\u6478\u5c4f\uff08HMI\uff09\u76f4\u63a5\u63a7\u5236\u3002\u4e91\u5e73\u53f0\u4e5f\u53ef\u4ee5\u53d1 MQTT \u547d\u4ee4\u7ed9\u7f51\u5173\uff0c\u7f51\u5173\u8f6c Modbus TCP \u6307\u4ee4\u63a7\u5236\u98ce\u673a\u542f\u505c\u3002<\/p>\n\n\n<pre class=\"wp-block-code\"><code>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510  LoRa  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510  MQTT  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 \u4f20\u611f\u5668\u00d750 \u2502\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192\u2502 LoRa   \u2502\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192\u2502 \u4e91\u5e73\u53f0    \u2502 \u2190 \u6570\u636e\u5206\u6790\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518        \u2502 \u7f51\u5173   \u2502        \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                    \u2514\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2518             \u2502 MQTT \u63a7\u5236\u6307\u4ee4\n                        \u2502 Modbus TCP      \u25bc\n                    \u250c\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                    \u2502 \u672c\u5730 HMI + PLC \u2502 \u2190 \u5b9e\u65f6\u63a7\u5236\n                    \u2502  (\u98ce\u673a\/\u5377\u5e18)    \u2502\n                    \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/code><\/pre>\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u8bbe\u8ba1\uff1f\u4f20\u611f\u5668\u4e0a\u62a5\u6570\u636e\u91cf\u5c0f\u4f46\u9891\u7387\u9ad8\uff08\u6bcf\u5206\u949f\uff09\uff0cMQTT \u7701\u6d41\u91cf\u3002\u98ce\u673a\u63a7\u5236\u8981\u6c42\u4f4e\u5ef6\u8fdf\uff08&lt; 500ms \u5fc5\u987b\u54cd\u5e94\uff09\uff0cModbus TCP \u76f4\u8fde\u6700\u53ef\u9760\u3002\u4e91\u5e73\u53f0\u7684\u5206\u6790\u7ed3\u679c\u2192\u63a7\u5236\u6307\u4ee4\u7684\u56de\u8def\u8d70 MQTT\uff0c\u53ef\u4ee5\u63a5\u53d7\u51e0\u767e\u6beb\u79d2\u7684\u5ef6\u8fdf\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u65f6\u5019\u4e0d\u9700\u8981\u6df7\u5408<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u7684\u9879\u76ee\u4e0d\u8d85 30 \u53f0\u8bbe\u5907\u3001\u4e0d\u9700\u8981\u4e0a\u4e91\u3001\u4e0d\u9700\u8981\u8fdc\u7a0b\u8fd0\u7ef4\u2014\u2014\u4e00\u53f0 PLC \u5e26 Modbus RS-485 \u603b\u7ebf\u548c\u4e00\u5757 HMI \u5c4f\u5e55\uff0c\u4e09\u6839\u7ebf\uff08A\/B\/GND\uff09\uff0c\u591f\u4e86\u3002\u4e0d\u8981\u4e3a\u4e86\u300c\u5148\u8fdb\u6027\u300d\u628a\u67b6\u6784\u641e\u590d\u6742\u3002\u5de5\u7a0b\u91cc\u7b80\u6d01\u5c31\u662f\u53ef\u9760\u6027\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u534f\u8bae\u7ec4\u5408\u901f\u67e5\u8868<\/h2>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u573a\u666f<\/th><th>\u8bbe\u5907\u6570<\/th><th>\u4e0a\u4e91<\/th><th>\u5b9e\u65f6\u6027<\/th><th>\u591a\u54c1\u724c<\/th><th>\u63a8\u8350\u65b9\u6848<\/th><\/tr><\/thead><tbody><tr><td>\u6c61\u6c34\u5904\u7406\u5382\u672c\u5730\u76d1\u63a7<\/td><td>30 \u53f0\u4eea\u8868<\/td><td>\u5426<\/td><td>\u79d2\u7ea7\u591f<\/td><td>\u5426<\/td><td>Modbus RTU<\/td><\/tr><tr><td>\u5206\u5e03\u5f0f\u5149\u4f0f\u7535\u7ad9<\/td><td>500 \u53f0\u9006\u53d8\u5668<\/td><td>\u662f(4G)<\/td><td>\u62a5\u8b66\u79d2\u7ea7<\/td><td>\u662f<\/td><td>Modbus RTU + MQTT \u7f51\u5173<\/td><\/tr><tr><td>\u6c7d\u8f66\u710a\u88c5\u8f66\u95f4 MES<\/td><td>200 \u53f0\u8bbe\u5907<\/td><td>\u5426<\/td><td>\u662f<\/td><td>\u662f(\u897f\u95e8\u5b50\u4e3a\u4e3b)<\/td><td>OPC UA<\/td><\/tr><tr><td>\u667a\u6167\u519c\u4e1a\u5927\u68da<\/td><td>50 \u4f20\u611f\u5668+10 \u6267\u884c\u5668<\/td><td>\u662f(LoRa+4G)<\/td><td>\u63a7\u5236\u767e\u6beb\u79d2<\/td><td>\u5426<\/td><td>MQTT Sensor + Modbus TCP Actuator<\/td><\/tr><tr><td>\u697c\u5b87\u81ea\u63a7<\/td><td>100 \u4e2a DDC \u63a7\u5236\u5668<\/td><td>\u53ef\u9009<\/td><td>\u79d2\u7ea7\u591f<\/td><td>\u662f(HVAC\u591a\u54c1\u724c)<\/td><td>Modbus TCP \/ BACnet + OPC UA<\/td><\/tr><tr><td>\u8fdc\u7a0b\u8bbe\u5907\u8fd0\u7ef4<\/td><td>\u5206\u6563\u5404\u5730<\/td><td>\u662f<\/td><td>\u975e\u5b9e\u65f6<\/td><td>\u5426<\/td><td>MQTT + TLS<\/td><\/tr><tr><td>\u5355\u673a\u8bbe\u5907\uff08\u53d8\u9891\u5668+HMI\uff09<\/td><td>&lt; 10<\/td><td>\u5426<\/td><td>\u6beb\u79d2\u7ea7<\/td><td>\u5426<\/td><td>Modbus RTU<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<h2 class=\"wp-block-heading\">\u6ca1\u4eba\u4f1a\u66ff\u4f60\u8bf4\u7684\u771f\u76f8<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u6ca1\u6709\u5b89\u5168\u673a\u5236\uff0c\u8fd9\u662f\u771f\u7684\u3002\u5b83\u7684\u5e27\u5c31\u662f\u660e\u6587\uff0cCRC \u53ea\u7ba1\u4f20\u8f93\u51fa\u9519\u4e0d\u7ba1\u6076\u610f\u7be1\u6539\u3002\u6709\u4eba\u628a Modbus TCP \u7aef\u53e3\u66b4\u9732\u5728\u516c\u7f51\u4e0a\uff0c\u8ddf\u628a\u5de5\u5382\u5927\u95e8\u655e\u5f00\u6ca1\u4ec0\u4e48\u533a\u522b\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u6ca1\u6709\u4e8b\u4ef6\u9a71\u52a8\u3002\u4f60\u8981\u4e8b\u4ef6\uff1f\u81ea\u5df1\u60f3\u529e\u6cd5\u8f6e\u8be2\u5f97\u5feb\u4e00\u70b9\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">Modbus \u6ca1\u6709\u6807\u51c6\u6570\u636e\u6a21\u578b\u3002A \u5382\u7684\u7535\u8868\u628a\u7535\u538b\u653e 40001 \u5bc4\u5b58\u5668\uff0cB \u5382\u653e 40002\u3002\u4f60\u7684\u4ee3\u7801\u91cc\u5230\u5904\u90fd\u662f if-else \u5224\u65ad\u8bbe\u5907\u578b\u53f7\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u4f46 Modbus \u6d3b\u4e86\u56db\u5341\u591a\u5e74\u4e0d\u662f\u9760\u529f\u80fd\u5f3a\uff0c\u662f\u9760\u591f\u7b80\u5355\u3002\u80fd\u5728 8 \u4f4d\u5355\u7247\u673a\u4e0a\u8dd1\uff0c\u80fd\u5728\u96f6\u4e0b\u4e09\u5341\u5ea6\u7a33\u5b9a\u8fd0\u884c\uff0c\u80fd\u4e00\u4e2a\u4e0b\u5348\u8c03\u901a\u3002MQTT \u51fa\u73b0\u4e86\uff0cOPC UA \u51fa\u73b0\u4e86\uff0c\u5b83\u6ca1\u6b7b\uff0c\u56e0\u4e3a\u8fd8\u6709\u5927\u91cf\u573a\u666f\u4e0d\u9700\u8981\u9ad8\u7ea7\u529f\u80fd\u2014\u201430 \u53f0\u8bbe\u5907\u3001\u4e00\u4e2a\u5382\u623f\u3001\u672c\u5730 HMI\uff0cModbus RTU \u4e00\u6761\u7ebf\u7a7f\u5230\u5e95\uff0c\u4ec0\u4e48\u53eb over-engineering\uff1f\u786c\u4e0a OPC UA \u5c31\u53eb over-engineering\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u53cd\u8fc7\u6765\uff0c\u5982\u679c\u4f60\u9762\u5bf9\u7684\u662f 500 \u53f0\u8bbe\u5907\u5206\u5e03\u5f0f\u90e8\u7f72\u5728 50 \u516c\u91cc\u8303\u56f4\u5185\u3001\u9700\u8981\u4e91\u5e73\u53f0\u5206\u6790\u3001\u8981\u6c42\u62a5\u8b66\u63a8\u9001\u2014\u2014\u62b1\u7740 Modbus \u4e0d\u653e\u5c31\u662f\u5728\u7ed9\u81ea\u5df1\u627e\u9ebb\u70e6\u3002\u8fd9\u65f6\u5019 MQTT \u52a0 Modbus \u7f51\u5173\u662f\u6700\u52a1\u5b9e\u7684\u9009\u62e9\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u5728\u4e00\u4e2a\u591a\u54c1\u724c PLC \u6df7\u7528\u7684\u5de5\u5382\uff0c\u9700\u8981 MES \u7cfb\u7edf\u5bf9\u4e0a\u5c42\u66b4\u9732\u7edf\u4e00\u63a5\u53e3\u2014\u2014OPC UA \u662f\u6807\u51c6\u7b54\u6848\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u54ea\u4e2a\u534f\u8bae\u90fd\u4e0d\u662f\u5b8c\u7f8e\u7684\uff0c\u4f60\u9009\u7684\u662f\u5728\u4f60\u8fd9\u573a\u666f\u4e0b\u6700\u4e0d\u574f\u7684\u90a3\u4e2a\u3002\u8fd9\u884c\u7684\u667a\u6167\u5728\u4e8e\uff1a\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u591f\u7528\u5c31\u597d\uff0c\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u5fc5\u987b\u5347\u7ea7\u3002<\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>\u522b\u4e0a\u6765\u5c31\u9009\u534f\u8bae \u6bcf\u4e2a\u8bba\u575b\u90fd\u5728\u95ee\u540c\u4e00\u4e2a\u95ee\u9898\uff1a\u300c\u6211\u8fd9\u4e2a\u9879\u76ee\u7528 M&#8230;<\/p>","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[270],"tags":[],"class_list":["post-45424","post","type-post","status-publish","format-standard","hentry","category-modbus-knowledge-base"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/45424","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"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=45424"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/45424\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=45424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=45424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=45424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}