如何通过Modbus RTU协议实现S7-1200与PAC3200的通信

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1、如何通过ModbusRTU协议实现S7-1200与PAC3200的通信HowtocommunicationbetweenS7-1200andPAC3200meterviaModbusRTUprotocolGettingStartedEdition(2009年12月)摘要本文介绍了通过Modbus协议实现S7-1200与PAC3200的通信。关键词Modbus协议，S7-1200，PAC3200KeyWordsModbusRTUprotocol，S7-1200，SENTRONPAC3200IA&DTService&Suppor

2、tPage2-27目录如何通过ModbusRTU协议实现S7-1200与PAC3200的通信...................................................11．西门子SENTRONPAC3200仪表介绍....................................................................................41.1SENTRONPAC3200MODBUSRTU通信扩展模块介绍.........................

3、.........................41.2SENTRONPAC3200MODBUSRTU通信扩展模块的接线...............................................51.3SENTRONPAC3200MODBUSRTU通信的方式.............................................................62．西门子SENTRONPAC3200仪表与S7-1200进行通信的接线图..........................

4、.................73．硬件需求...................................................................................................................................73．软件需求.......................................................................................................

5、............................84．S7-1200MODBUSRTU的通信方式.......................................................................................85．S7-1200与PAC3200进行MODBUSRTU的通信组态........................................................115.1PLC硬件组态........................

6、........................................................................................115.2PAC3200参数设置........................................................................................................126．S71200与PAC3200的MODBUSRTU通信原理与编程的实现...................

7、........................136.1S71200PLC与PAC3200通过MODBUSRTU通信的基本原理..................................136.2S71200PLC与PAC3200通过MODBUSRTU通信的编程.........................................16附录－推荐网址...............................................................................

8、............................................26IA&DTService&SupportPage3-27西门子S7-1200紧凑型PLC在当前的市场中有着广泛的应用，作为经常与SENTRONPAC3200系列仪表共同使用的PLC，其Modbus通