"# Modbus\u5165\u95e8\n\n> 2022-06-03 | 2026-07-01\n> https:\/\/www.modbus.cn\/en\/7856.html\n\n**Modbus \u534f\u8bae\u6807\u51c6**\n\n---\n\nModbus\u662f\u5e94\u7528\u4e8e\u7535\u5b50\u63a7\u5236\u5668\u4e0a\u7684\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u662f\u5de5\u4e1a\u7535\u5b50\u8bbe\u5907\u4e4b\u95f4\u5e38\u7528\u7684\u8fde\u63a5\u65b9\u5f0f\uff0c\u901a\u8fc7\u6b64\u534f\u8bae\uff0c\u63a7\u5236\u5668\u76f8\u4e92\u4e4b\u95f4\u3001\u63a7\u5236\u5668\u7ecf\u7531\u7f51\u7edc\uff08\u4f8b\u5982\u4ee5\u592a\u7f51\uff09\u548c\u5176\u5b83\u8bbe\u5907\u4e4b\u95f4\u53ef\u4ee5\u901a\u4fe1\u3002\u5b83\u5df2\u7ecf\u6210\u4e3a\u4e00\u901a\u7528\u5de5\u4e1a\u6807\u51c6\uff0c\u4e0d\u540c\u5382\u5546\u751f\u4ea7\u7684\u63a7\u5236\u8bbe\u5907\u53ef\u4ee5\u8fde\u6210\u5de5\u4e1a\u7f51\u7edc\uff0c\u8fdb\u884c\u96c6\u4e2d\u76d1\u63a7\u3002\u4ee5\u4e0b\u4ee54\u51654\u51fa\u7ee7\u7535\u5668\u6a21\u5757\uff08Modbus RTU\uff09\u4e3a\u4f8b\uff0c\u8bb2\u89e3\u5982\u4f55\u5c06\u652f\u6301Modbus\u534f\u8bae\u7684\u7ec8\u7aef\u8bbe\u5907\u63a5\u5165Modbus\u7269\u8054\u7f51\u4e91\u5e73\u53f0\uff0c\u5e76\u6f14\u793a\u5982\u4f55\u63a5\u7ebf\u4e0e\u914d\u7f6e,\u901a\u8baf\u8bbe\u5907\u9009\u62e9\u6709\u4eba\u76844G DTU USR-DR15X \u4e3a\u4f8b\u3002\n\n## \u4e00\u3001\u51c6\u5907\n\n### \u6750\u6599\u51c6\u5907\n\n\u6ce8\u518cModbus\u4e91\u5e73\u53f0\n\n\u7528\u624b\u673a\u53f7\/\u90ae\u7bb1\u6ce8\u518cModbus\u4e91\u5e73\u53f0\u901a\u884c\u8bc1\uff0c[\u767b\u5f55Modbus\u4e91\u5e73\u53f0\u3002](http:\/\/cloud.modbus.cn)\n\n## \u4e8c\u3001\u8fde\u63a5\u8bbe\u5907\n\n1.\u5c06\u7ee7\u7535\u5668\u4e0eDTU\u901a\u8fc7485\u4e32\u53e3\u7ebf\u8fde\u63a5\n2.\u5206\u522b\u7ed9\u7ee7\u7535\u5668\u548cDTU\u4f9b\u7535\uff0812V\uff09\uff08\u68d5\u6b63\u9ed1\u8d1f\uff09\n\n## \u4e09\u3001\u4e91\u7aef\u6dfb\u52a0\u8bbe\u5907\n\n\u4e91\u7aef\u6dfb\u52a0\u8bbe\u5907\uff0c\u53ea\u9700\u4e09\u6b65\uff1a\u57fa\u672c\u4fe1\u606f\u3001\u9009\u62e9\u4ea7\u54c1\u3001\u8bbe\u5907\u4e0a\u4e91\uff0c\u4fbf\u53ef\u5feb\u901f\u628a\u8bbe\u5907\u63a5\u5165Modbus\u4e91\u5e73\u53f0\u3002\n\n### 1.\u57fa\u672c\u4fe1\u606f\n\n\u586b\u5199\u8bbe\u5907\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5305\u62ec\u8bbe\u5907\u540d\u79f0\u3001\u8bbe\u5907\u53f7\u3001\u8bbe\u5907\u534f\u8bae\u3001\u8bbe\u5907\u7ecf\u7eac\u5ea6\u3001\u6392\u5e8f\u7b49\u4fe1\u606f\u3002\n\n**\u81ea\u5b9a\u4e49\u6dfb\u52a0\u65b9\u5f0f\uff1a**\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654220514291.png)\n\n\u8bbe\u5907\u53f7:\u9ed8\u8ba4\u53ef\u4ee5\u7528\u7cfb\u7edf\u81ea\u52a8\u751f\u6210\uff0c\u4e5f\u53ef\u201c\u81ea\u5b9a\u4e49\u586b\u5199\u201d\u3002\n\n**\u4ea7\u54c1\u5e93\u4e00\u952e\u6dfb\u52a0\u65b9\u5f0f\uff1a**\n\n\u5404\u7c7b\u5408\u4f5c\u5382\u5bb6\u4f18\u79c0\u7684\u4ea7\u54c1\u6c47\u96c6\u5165\u9a7b\u6709Modbus\u4ea7\u54c1\u5e93\uff0c\u7528\u6237\u901a\u8fc7\u201c\u8bbe\u5907\u7ba1\u7406\u201d\u2192\u201c\u65b0\u589e\u8bbe\u5907\u201d\u2192\u201c\u4ea7\u54c1\u5e93\u201d\u65b9\u5f0f\u9009\u62e9\u54c1\u724c\uff0c\u7c7b\u522b\uff0c\u578b\u53f7\uff0c\u70b9\u51fb\u5b8c\u6210\u8bbe\u5907\u4e00\u952e\u6dfb\u52a0\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654221060064.png)\n\n### \u65b0\u589e\u4f20\u611f\u5668\n\n\u70b9\u51fb\u8bbe\u5907\u7ba1\u7406\u4e0b \u8bbe\u5907\u4fe1\u606f\u2192\uff08\u8bbe\u5907\uff09\u2192\u5c5e\u6027\u8bbe\u7f6e\uff08\u56fe\u6807\uff09\u2192\u65b0\u589e\u4f20\u611f\u5668\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654222108895-950x396.png)\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654222205513.png)\n\n\u4f20\u611f\u5668\u5217\u8868\n\n\u8fd9\u91cc\u7684\u5730\u5740\u53f7\u4e3a\u4ece\u673a\u5730\u5740\uff0c\u5bc4\u5b58\u5668\u53f7\u4e3a\u504f\u79fb\u5730\u5740\uff0c\u6211\u4eec\u5728\u6dfb\u52a0\u4f20\u611f\u5668\u4fe1\u606f\u65f6\uff0c\u9700\u8981\u6309\u7167\u91c7\u96c6\u53c2\u6570\u7684\u5c5e\u6027\u6765\u6dfb\u52a0\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u5177\u4f53\u8bb2\u89e3\u4f20\u611f\u5668\u4e2d\u5404\u4e2a\u5b57\u6bb5\u7684\u542b\u4e49\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654222372864.png)\n\n### \u4f20\u611f\u5668\u70b9\u8be6\u89e3\n\n**\u6570\u636e\u7c7b\u578b**\n\n\u6570\u636e\u7c7b\u578b\u4e00\u822c\u7684\u8bfb\u5c55\u793a\u6570\u636e\u4e3a\u6570\u636e\u5c5e\u6027\uff0c\u90e8\u5206\u573a\u666f\u4e0b\u6211\u4eec\u9700\u8981\u5199\u6570\u636e\u5230\u8bbe\u5907\u4e2d\uff0c\u6211\u4eec\u5c31 \u53ef\u4ee5\u9009\u62e9\u914d\u7f6e\u5c5e\u6027\u3002\n\n**\u5730\u5740\u53f7**\n\n\u5730\u5740\u53f7\u4e3a modbus \u4ece\u673a\u8bbe\u5907\u7684\u5730\u5740\uff0c\u5b83\u7684\u8303\u56f4\u4e3a 1~255 \uff0c\u8fd9\u91cc\u6211\u4eec\u586b\u5199\u7684\u6570\u636e\u90fd\u662f 10 \u8fdb\u5236\u663e\u793a\u6570\u636e\uff0c\u5982\u67d0\u6b3e modbus \u4ece\u673a\u8bbe\u5907\u7684\u5730\u5740\u4e3a 0x 11,\u5219\u8fd9\u91cc\u5730\u5740\u4e3a\u586b\u5199 17 \u5c31\u884c\u3002\n\n**\u5bc4\u5b58\u5668\u53f7**\n\n\u5bc4\u5b58\u5668\u53f7\u4e3amodbus \u4ece\u673a\u7684\u5bc4\u5b58\u5668\u504f\u79fb\u5730\u5740\uff0c \u65e5\u5e38\u6211\u4eec\u6d4f\u89c8\u8bbe\u5907\u8bf4\u660e\u4e66\u65f6\uff0c\u4e00\u822c\u4f1a\u6709 2 \u79cd\u5f62\u5f0f\uff0c\u4e00\u79cd\u4f1a\u51fa\u5bc4\u5b58\u5668\u5730\u5740\uff0c\u53e6\u5916\u4e00\u79cd\u7ed9 PLC \u6216\u8005\u7ec4\u6001\u5730\u5740\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6211\u4eec\u770b\u5230\u5982\u679c \u662f\u5bc4\u5b58\u5668\u5730\u5740\uff0c\u5219 \u6e7f\u5ea6\u91c7\u96c6\u5c5e\u6027\u5bc4\u5b58\u5668\u5730\u5740\u4e3a 0 \uff0c\u6e29\u5ea6\u91c7\u96c6\u5c5e\u6027\u5bc4\u5b58\u5668\u5730\u5740\u4e3a 1 \u5219\u53ef\u4ee5\u3002 \u5982\u679c\u7ed9\u51fa\u7684\u662f PLC \u6216\u8005\u7ec4\u6001\u5730\u5740\uff0c\u5219\u9700\u8981\u8f6c\u6362\u4e00\u822c\u5219\u4e3a\u53bb\u6389\u6700\u9ad8\u4f4d\uff0c\u5728\u51cf\u53bb 1 \u5219\u53ef\uff0c\u5982 40001\uff0c\n\n\u53bb\u6389\u6700\u9ad8\u4f4d\u53d8\u4e3a 00001 \uff0c\u51cf\u53bb 1 \uff0c\u5219\u4e3a 0, 40001 -> 0 \uff0c40002 -> 1  \uff0c\u8fd9\u91cc\u5927\u5bb6\u4e00\u5b9a\u4e0d\u80fd\u6df7\u6dc6\u3002\n\n**\u6570\u636e\u7cbe\u5ea6**\n\n\u6570\u636e\u7cbe\u5ea6\u4e3a\u6570\u636e\u7684\u6709\u6548\u4f4d\u6570\uff0c\u6bd4\u5982\u4f20\u9012\u7684\u6570 10.234 \uff0c\u5982\u679c\u6570\u636e\u7cbe\u5ea6\u9009\u62e9 2 \uff0c\u5219\u5c0f\u6570\u70b9\u7b2c \u4e09\u4f4d\u4f1a\u88ab\u56db\u820d\u4e94\u5165\u53d8\u4e3a 10.23 \uff0c\u5176\u4ed6\u7c7b\u4f3c\u3002\n\n**\u50a8\u5b58\u7b56\u7565**\n\n\u50a8\u5b58\u7b56\u7565\uff0c\u6570\u636e\u50a8\u5b58\u5230\u6570\u636e\u5e93\u7684\u6a21\u5f0f\uff0c\u6839\u636e\u540d\u5b57\u5c31\u53ef\u4ee5\u7406\u89e3\uff0c\u6ca1\u6709\u7279\u6b8a\u8981\u6c42\uff0c\u9ed8\u8ba4\u5373\u53ef\u3002\n\n**\u516c\u5f0f\u5904\u7406**\n\n\u516c\u5f0f\u5904\u7406 (\u8bbe\u5907->\u5e73\u53f0) \u4e3a\u91c7\u96c6\u8fc7\u6765\u7684\u6570\u636e\uff0c\u7ecf\u8fc7\u516c\u5f0f\u8ba1\u7b97\u540e\u50a8\u5b58\u548c\u5c55\u793a\u4f7f\u7528\uff0c\u6bd4\u5982\u91c7 \u96c6\u5230\u6570\u503c\u662f 100 \uff0c\u6211\u4eec\u8981\u9664\u4ee5 10 \u4f7f\u7528\uff0c\u5219\u53ef\u4ee5\u586b\u5199 x\/10  \u5373\u53ef\u3002\u5e73\u53f0->\u8bbe\u5907\u7684\u516c\u5f0f\u662f\u5199\u6570\u636e \u7684\u65f6\u5019\u4f7f\u7528\u3002\n\n**\u53c2\u6570\u914d\u7f6e   **\n\n\u53c2\u6570\u914d\u7f6e\u662f\u914d\u7f6e\u6570\u636e\u7684\u5c5e\u6027\u4f7f\u7528\u7684\uff0c\u4e00\u822c modbus\u00a0\u5c5e\u6027\u6709 01,02,03,04,05,06 \u7b49\u529f\u80fd\uff0c\u00a0\u5404\u4e2a\u529f\u80fd\u5bf9\u5e94\u529f\u80fd\u5982\u4e0b\uff0c\u9ed8\u8ba4 03 \u529f\u80fd\u7801\uff0c\u6211\u4eec\u4e0d\u9700\u8981\u914d\u7f6e\uff0c\u4f46\u662f\u6bd4\u5982\u5199\u6570\u636e\u548c\u63a7\u5236\u5f00\u5173\u6211\u4eec\u5219\u9700\u8981\u6309\u7167\u5bf9\u5e94\u89c4\u5219\u914d\u7f6e\u3002 \u6bd4\u5982\u6211\u4eec\u5e38\u7528 40001 \uff0c\u5219\u5b83\u7684\u529f\u80fd\u7801\u662f 03 \uff0c\u5bc4\u5b58\u5668\u5730\u5740\u4e3a 0,\u00a0\u518d\u6bd4\u5982 10003 \u4fe1\u606f\u5219\u529f\u80fd\u7801\u4e3a 02\u00a0\uff0c\u5bc4\u5b58\u5668\u5730\u5740\u4e3a 2\u3002\u4e0b\u56fe\u5df2\u7ecf\u975e\u5e38\u8be6\u7ec6\u7684\u8bb2\u89e3\u4e86\u6211\u4eec\u5728\u8bbe\u7f6e\u4f20\u611f\u5668\u65f6\uff0c\u5982\u4f55\u914d\u7f6e\u53c2\u6570\n\n\u5f00\u5173\u00a0(\u7ebf\u5708) \u914d\u7f6e\u00a0**05**\u00a0\u6307\u4ee4\uff0c\u7cfb\u7edf\u4f1a\u9ed8\u8ba4\u7528 05 \u6267\u884c\u5199\uff0c01 \u6307\u4ee4\u8bfb\uff1b   \n\n\u8bfb\u5199\u6570\u636e \u914d\u7f6e\u00a0**06**\u00a0\u00a0\uff0c\u7cfb\u7edf\u4f1a\u9ed8\u8ba4\u7528 06 \u00a0\u6267\u884c\u5199\uff0c03 \u6307\u4ee4\u8bfb\uff1b\n\n\u5176\u4ed6\u5219\u6309\u7167\u6b63\u5e38\u7684\u6307\u4ee4\u529f\u80fd\u7801\u914d\u7f6e\u5219\u884c\uff1b \n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/06\/1654222611993.png)\n\n---\n*modbus.cn*\n"