【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。更多还原

【Abstract】 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.更多还原