基于MODBUSRTU协议的西门子S7—300PLC与艾默生DeltaVDCS串行通信

摘要

Through the example of communication between S7-300 PLC and DeltaV DCS, Introduce the implement of serial communication based on MODBUS RTU Protocol with configuration and parametrization, it＇s indicated the serial communication based on MODBUS RTU Protoc%以西门子S7-300PLC与艾默生DeltaVDCS通信为实例，通过软件组态及串行通信参数化，介绍了以MODBUSRTU通信协议为基础的串行通信的具体实现方法，实践表明基于MODBUSRTU通信协议为基础的串行通信简单、通用性强并且使用方便，具有广泛的应用。