{"id":79185,"date":"2024-01-08T11:57:41","date_gmt":"2024-01-08T03:57:41","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=79185"},"modified":"2024-01-08T11:57:41","modified_gmt":"2024-01-08T03:57:41","slug":"srljmjkdy","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/79185.html","title":{"rendered":"\u6df1\u5165\u7406\u89e3Modbus\u63a5\u53e3\u5b9a\u4e49"},"content":{"rendered":"
Modbus\u63a5\u53e3\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u7684\u901a\u4fe1\u534f\u8bae\u4e4b\u4e00\uff0c\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Modbus\u63a5\u53e3\u5b9a\u4e49\u53ca\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n
Modbus\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5b9e\u73b0\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\u7684\u8bbe\u5907\u901a\u4fe1\u3002\u5176\u6700\u5e38\u89c1\u7684\u5b9e\u73b0\u662f\u57fa\u4e8e\u4e32\u884c\u901a\u4fe1\u7684RS-485\u603b\u7ebf\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u592a\u7f51\u7b49\u5176\u4ed6\u901a\u4fe1\u65b9\u5f0f\u4f20\u8f93\u3002Modbus\u534f\u8bae\u5177\u6709\u7b80\u5355\u3001\u53ef\u9760\u3001\u7075\u6d3b\u7b49\u7279\u70b9\uff0c\u652f\u6301\u70b9\u5bf9\u70b9\u3001\u591a\u70b9\u548c\u5e7f\u64ad\u901a\u4fe1\uff0c\u5e76\u4e14\u5e7f\u6cdb\u5e94\u7528\u4e8ePLC\uff08\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668\uff09\u3001\u4f20\u611f\u5668\u3001\u6267\u884c\u5668\u7b49\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u3002\u8be5\u534f\u8bae\u4e00\u822c\u5305\u62ec\u6570\u636e\u5e27\u7684\u7ed3\u6784\u3001\u5bfb\u5740\u65b9\u5f0f\u3001\u6570\u636e\u7c7b\u578b\u3001\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u7b49\u529f\u80fd\u3002<\/p>\n
Modbus RTU\u662f\u4e00\u79cd\u5728\u4e32\u884c\u901a\u4fe1\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u7684Modbus\u53d8\u4f53\u3002\u5b83\u91c7\u7528\u4e8c\u8fdb\u5236\u7f16\u7801\u65b9\u5f0f\u4f20\u8f93\u6570\u636e\uff0c\u91c7\u752816\u4f4dCRC\u6821\u9a8c\u8fdb\u884c\u6570\u636e\u9a8c\u8bc1\uff0c\u901a\u4fe1\u901f\u7387\u53ef\u8fbe\u5230115200 bps\u3002Modbus RTU\u7684\u6570\u636e\u5e27\u5305\u62ec\u8d77\u59cb\u7b26\u3001\u5730\u5740\u7801\u3001\u529f\u80fd\u7801\u3001\u6570\u636e\u3001CRC<\/a>\u6821\u9a8c\u7b49\u5b57\u6bb5\u3002\u5b83\u5177\u6709\u6570\u636e\u4f20\u8f93\u5feb\u901f\u3001\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7b49\u7279\u70b9\uff0c\u9002\u7528\u4e8e\u8981\u6c42\u8f83\u9ad8\u901a\u4fe1\u901f\u7387\u548c\u7a33\u5b9a\u6027\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n Modbus TCP\u662f\u5efa\u7acb\u5728TCP\/IP\u534f\u8bae\u4e4b\u4e0a\u7684Modbus\u901a\u4fe1\u534f\u8bae\uff0c\u4f7f\u7528\u4ee5\u592a\u7f51\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002\u4e0eModbus RTU<\/a>\u76f8\u6bd4\uff0cModbus TCP\u652f\u6301\u66f4\u5927\u7684\u6570\u636e\u91cf\uff0c\u5177\u6709\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u7075\u6d3b\u6027\u3002\u901a\u8fc7\u4ee5\u592a\u7f51\uff0cModbus TCP\u53ef\u4ee5\u5b9e\u73b0\u8fdc\u7a0b\u76d1\u63a7\u3001\u8fdc\u7a0b\u63a7\u5236\u7b49\u529f\u80fd\uff0c\u4f7f\u5f97\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u7684\u8fdc\u7a0b\u7ba1\u7406\u66f4\u52a0\u4fbf\u6377\u3002<\/p>\n Modbus\u63a5\u53e3\u5b9a\u4e49\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u6d89\u53ca\u5230\u8bf8\u591a\u5de5\u4e1a\u8bbe\u5907\u548c\u7cfb\u7edf\u7684\u901a\u4fe1\u548c\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u9886\u57df\uff1a<\/p>\n \u5728\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0c\u5404\u79cd\u8bbe\u5907\u4e4b\u95f4\u9700\u8981\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u548c\u901a\u4fe1\uff0cModbus\u63a5\u53e3\u5b9a\u4e49\u5e7f\u6cdb\u5e94\u7528\u4e8ePLC\u3001\u4f20\u611f\u5668\u3001\u6267\u884c\u5668\u7b49\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u5b9e\u73b0\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\u63a7\u5236\u3002<\/p>\n Modbus TCP<\/h3>\n
Modbus\u63a5\u53e3\u5b9a\u4e49\u7684\u5e94\u7528\u9886\u57df<\/h2>\n
\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf<\/h3>\n
\u80fd\u6e90\u7ba1\u7406\u7cfb\u7edf<\/h3>\n