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时间:2017-12-08
《台达plc modbus通讯协议》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、www.plcworld.cnPRODUCTSPECIFICATIONDVPSeriesPLCCommunicationProtocolV1.1aDELTAELECTRONICS,INC.ResponsiblePersonSignatureDateWrittenBy林倉億CheckedBy唐琳黛/杜俊諺Application王俊欽ApprovedBy翟立文www.plcworld.cnPLC工程部技術文件編號:C-PLC-A003ItemChangeNotesDate1第一版發行7/1/20032V1.1版修正1/5/20063新增
2、通訊Buffer長度2/9/20061www.plcworld.cnPLC工程部技術文件編號:C-PLC-A003目錄一、簡介..........................................................................................................................3二、軟體規範.............................................................................
3、......................................3三、機能..........................................................................................................................3四、連線方式.................................................................................................
4、..................6五、通訊格式介紹:........................................................................................................71.通訊資料協定........................................................................................................72.通訊資料格式...............
5、.........................................................................................7i.ASCIIMode...................................................................................................7ii.RTUMode..........................................................
6、...........................................83.通訊工作方式........................................................................................................84.錯誤訊息回應........................................................................................................
7、9六、MODBUS通訊命令格式:.....................................................................................10Function01:ReadCoilStatus...........................................................................10Function02:ReadInputStatus......................................
8、...................................12Function03:ReadHoldingRegisters.................................................
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