Siemens CP340模块实现Modbus RTU协议的研究  

Implementation of Modbus RTU Protocol by Siemens CP340 Communication Module

作　　者：甘朝辉[1] 廖雪超[1] 

机构地区：[1]武汉科技大学信息科学与工程学院,430081

出　　处：《工业控制计算机》2005年第2期57-59,共3页Industrial Control Computer

摘　　要：本文介绍了SiemensCP340模块和ModbusRTU协议,并详细讲述了用CP340模块实现ModbusRTU协议的方法,给出了设计思路和软件编程。应用证明CP340模块在和其它设备采用这种协议通讯时稳定可靠,这种协议转换方法很适合控制现场使用。The Siemens CP340 module and Modbus RTU protocol are described in this paper.The implementation method of Modbus RTU protocol by CP340 module and its design thought and software programming are also presented. The practical application proved that CP340 module is a stable and reliable communication equipment when it communicates with other equipments with this protocol. The protocol conversion method is very suitable to be used in industrial control field.

关 键 词：Siemens公司 CP340模块 MODBUS RTU协议 SCADA 通讯协议 功能码 自动化控制系统 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]