Modbus RTU\u662f\u4e00\u79cd\u63a7\u5236\u5668\u4e0e\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u662fModbus\u5bb6\u65cf\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684\u4e00\u79cd\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u7684\u7279\u70b9\u662f\u7b80\u5355\u3001\u5feb\u901f\u3001\u53ef\u9760\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u5e94\u7528\u7684\u8981\u6c42\u3002Modbus RTU\u534f\u8bae\u4f7f\u7528\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5141\u8bb8\u6700\u591a247\u4e2a\u4ece\u7ad9\u8fde\u63a5\u5230\u4e00\u4e2a\u4e3b\u7ad9\uff0c\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u4e32\u884c\u63a5\u53e3\uff0c\u652f\u6301\u591a\u79cd\u4e32\u884c\u7ebf\u8def\uff0c\u5982RS-232\uff0cRS-485\u7b49\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u7684\u7ed3\u6784\u7531\u4e00\u4e2a\u4e3b\u7ad9\uff08Master\uff09\u548c\u591a\u4e2a\u4ece\u7ad9\uff08Slave\uff09\u7ec4\u6210\uff0c\u5176\u4e2d\uff0c\u4e3b\u7ad9\u53ef\u4ee5\u5411\u4ece\u7ad9\u53d1\u9001\u6307\u4ee4\uff0c\u4ece\u7ad9\u6536\u5230\u6307\u4ee4\u540e\uff0c\u6839\u636e\u6307\u4ee4\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\uff0c\u5e76\u5411\u4e3b\u7ad9\u8fd4\u56de\u5904\u7406\u7ed3\u679c\u3002Modbus RTU\u534f\u8bae\u91c7\u7528\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u6570\u636e\u5e27\u7ed3\u6784\uff0c\u6bcf\u4e00\u5e27\u6570\u636e\u5305\u542b\u4e00\u4e2a\u5b57\u8282\u7684\u8d77\u59cb\u5b57\u7b26\uff0c\u4e00\u4e2a\u5b57\u8282\u7684\u529f\u80fd\u7801\uff0c\u4e00\u4e2a\u6216\u591a\u4e2a\u5b57\u8282\u7684\u6570\u636e\uff0c\u4ee5\u53ca\u4e00\u4e2a\u5b57\u8282\u7684CRC\u6821\u9a8c\u7801\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u4e2d\u7684\u8d77\u59cb\u5b57\u7b26\u662f\u4e00\u4e2a\u5b57\u8282\uff0c\u5b83\u7528\u4e8e\u6807\u8bc6\u4e00\u4e2aModbus RTU\u6570\u636e\u5e27\u7684\u5f00\u59cb\uff0c\u5b83\u7684\u503c\u56fa\u5b9a\u4e3a0xFF\uff0c\u8868\u793a\u4e00\u4e2aModbus RTU\u6570\u636e\u5e27\u7684\u5f00\u59cb\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u4e2d\u7684\u529f\u80fd\u7801\u662f\u4e00\u4e2a\u5b57\u8282\uff0c\u5b83\u7528\u4e8e\u6807\u8bc6\u4e00\u4e2aModbus RTU\u6570\u636e\u5e27\u7684\u529f\u80fd\uff0c\u5b83\u7684\u503c\u53ef\u4ee5\u662f0x01\u52300xFF\uff0c\u8868\u793a\u4e0d\u540c\u7684\u529f\u80fd\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u4e2d\u7684\u6570\u636e\u662f\u4e00\u4e2a\u6216\u591a\u4e2a\u5b57\u8282\uff0c\u5b83\u4eec\u7528\u4e8e\u6807\u8bc6\u4e00\u4e2aModbus RTU\u6570\u636e\u5e27\u7684\u6570\u636e\uff0c\u5b83\u4eec\u7684\u503c\u53ef\u4ee5\u662f0x00\u52300xFF\uff0c\u8868\u793a\u4e0d\u540c\u7684\u6570\u636e\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u4e2d\u7684CRC\u6821\u9a8c\u7801\u662f\u4e00\u4e2a\u5b57\u8282\uff0c\u5b83\u7528\u4e8e\u6821\u9a8c\u4e00\u4e2aModbus RTU\u6570\u636e\u5e27\u7684\u5b8c\u6574\u6027\uff0c\u5b83\u7684\u503c\u53ef\u4ee5\u662f0x00\u52300xFF\uff0c\u8868\u793a\u4e0d\u540c\u7684\u6821\u9a8c\u7801\u3002<\/p>\n
Modbus RTU\u534f\u8bae\u5177\u6709\u8bb8\u591a\u4f18\u52bf\uff0c\u5176\u4e2d\u6700\u91cd\u8981\u7684\u662f\u5b83\u7684\u7b80\u5355\u6027\uff0c\u5b83\u5177\u6709\u7b80\u5355\u7684\u6570\u636e\u5e27\u7ed3\u6784\uff0c\u4ee5\u53ca\u7b80\u5355\u7684\u529f\u80fd\u7801\uff0c\u4f7f\u5f97Modbus RTU\u534f\u8bae\u5bb9\u6613\u7406\u89e3\u548c\u5b9e\u73b0\uff0c\u53ef\u4ee5\u5927\u5927\u7b80\u5316\u7cfb\u7edf\u7684\u5f00\u53d1\u5de5\u4f5c\u3002\u6b64\u5916\uff0cModbus RTU\u534f\u8bae\u5177\u6709\u5feb\u901f\u6027\uff0c\u5b83\u4f7f\u7528\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5141\u8bb8\u6700\u591a247\u4e2a\u4ece\u7ad9\u8fde\u63a5\u5230\u4e00\u4e2a\u4e3b\u7ad9\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u7cfb\u7edf\u7684\u901a\u4fe1\u6548\u7387\u3002\u6700\u540e\uff0cModbus RTU\u534f\u8bae\u5177\u6709\u53ef\u9760\u6027\uff0c\u5b83\u4f7f\u7528CRC\u6821\u9a8c\u7801\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3002<\/p>\n
\u603b\u4e4b\uff0cModbus RTU\u534f\u8bae\u662f\u4e00\u79cd\u63a7\u5236\u5668\u4e0e\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u5177\u6709\u7b80\u5355\u3001\u5feb\u901f\u3001\u53ef\u9760\u7684\u7279\u70b9\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u5e94\u7528\u7684\u8981\u6c42\u3002Modbus RTU\u534f\u8bae\u5177\u6709\u8bb8\u591a\u4f18\u52bf\uff0c\u5b83\u7684\u7b80\u5355\u6027\u3001\u5feb\u901f\u6027\u548c\u53ef\u9760\u6027\u90fd\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0cModbus RTU\u534f\u8bae\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u5e76\u53ef\u80fd\u7ee7\u7eed\u6210\u4e3a\u672a\u6765\u5de5\u4e1a\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u901a\u4fe1\u534f\u8bae\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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