"# Modbus TCP\/IP\u548cModbus RTU\u7684\u533a\u522b\n\n> 2023-02-11 | 2023-02-11\n> https:\/\/www.modbus.cn\/en\/wenda\/11702.html\n\n---\n\nModbus\u662f\u4e00\u79cd\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u8fde\u63a5\u81ea\u52a8\u5316\u8bbe\u5907\uff08\u5982PLC\u3001\u6e29\u5ea6\u63a7\u5236\u5668\u7b49\uff09\u548c\u8ba1\u7b97\u673a\u3002Modbus\u534f\u8bae\u652f\u6301\u591a\u79cd\u901a\u4fe1\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u89c1\u7684\u662fModbus RTU\u548cModbus TCP\/IP\u3002\n\n\r\n\nModbus RTU\uff08Remote Terminal Unit\uff09\u91c7\u7528\u4e8c\u8fdb\u5236\u6570\u636e\u4f20\u8f93\uff0c\u4f7f\u7528\u4e32\u884c\u901a\u4fe1\uff0c\u652f\u6301RS232\u548cRS485\u4e24\u79cd\u63a5\u53e3\u3002\u5728RTU\u6a21\u5f0f\u4e0b\uff0c\u6bcf\u4e2a\u5b57\u8282\u53ef\u4ee5\u4f20\u8f93\u4e24\u4f4d\u5341\u516d\u8fdb\u5236\u5b57\u7b26\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u4f20\u8f93\u6548\u7387\u548c\u7a33\u5b9a\u6027\uff0c\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\u3002Modbus RTU\u901a\u4fe1\u662f\u57fa\u4e8e\u4ece\u7ad9\u54cd\u5e94\u7684\uff0c\u5373\u4ece\u7ad9\u4e3b\u52a8\u7b49\u5f85\u4e3b\u7ad9\u7684\u8bf7\u6c42\uff0c\u4e3b\u7ad9\u5411\u4ece\u7ad9\u53d1\u9001\u8bf7\u6c42\uff0c\u4ece\u7ad9\u8fdb\u884c\u54cd\u5e94\u3002\n\n\r\n\nModbus TCP\/IP\uff08Transmission Control Protocol\/Internet Protocol\uff09\u4f7f\u7528TCP\/IP\u534f\u8bae\u8fdb\u884c\u901a\u4fe1\uff0c\u53ef\u4ee5\u5728\u5c40\u57df\u7f51\uff08LAN\uff09\u548c\u5e7f\u57df\u7f51\uff08WAN\uff09\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002Modbus TCP\/IP\u9002\u7528\u4e8e\u8fdc\u7a0b\u76d1\u63a7\u548c\u63a7\u5236\uff0c\u5e38\u7528\u4e8e\u5de5\u4e1a\u7f51\u7edc\u548c\u7269\u8054\u7f51\u5e94\u7528\u3002\u8be5\u534f\u8bae\u7684\u7269\u7406\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42\u3001\u7f51\u7edc\u5c42\u3001\u4f20\u8f93\u5c42\u90fd\u662f\u57fa\u4e8eTCP\u534f\u8bae\uff0c\u5b83\u53ea\u662f\u5728\u5e94\u7528\u5c42\u5c06Modbus\u534f\u8bae\u5c01\u88c5\u8fdb\u53bb\u3002\u5728Modbus TCP\/IP\u4e2d\uff0c\u4e3b\u4ece\u7ad9\u7684\u533a\u522b\u4e0d\u518d\u660e\u663e\uff0c\u901a\u4fe1\u65b9\u5f0f\u91c7\u7528\u7c7b\u4f3c\u4e8e\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u7aef\u7684\u65b9\u5f0f\uff0c\u4e3b\u7ad9\u4f5c\u4e3a\u5ba2\u6237\u7aef\uff0c\u5411\u4ece\u7ad9\u4f5c\u4e3a\u670d\u52a1\u5668\u7aef\u53d1\u9001\u8bf7\u6c42\uff0c\u4ece\u7ad9\u6536\u5230\u8bf7\u6c42\u540e\u8fdb\u884c\u54cd\u5e94\u3002\n\n\r\n\n\u56e0\u6b64\uff0cModbus RTU\u548cModbus TCP\/IP\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u4f20\u8f93\u65b9\u5f0f\u548c\u901a\u4fe1\u6a21\u5f0f\uff0cModbus RTU\u91c7\u7528\u4e32\u884c\u901a\u4fe1\uff0c\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\uff0c\u5e76\u4e14\u662f\u57fa\u4e8e\u4ece\u7ad9\u54cd\u5e94\u7684;\u800cModbus TCP\/IP\u91c7\u7528TCP\/IP\u534f\u8bae\u8fdb\u884c\u901a\u4fe1\uff0c\u9002\u7528\u4e8e\u8fdc\u7a0b\u901a\u4fe1\uff0c\u5e76\u4e14\u662f\u57fa\u4e8e\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u7aef\u7684\u901a\u4fe1\u6a21\u5f0f\u3002\n\n---\n*modbus.cn*\n"