对FMS50教学系统中PROFIBUS-DP通信的研究

The Disquisition on the Communication about the FMS50 through PROFIBUS-DP Net

首先对FMS50教学系统各站S7-300系列可编程序控制器软硬件进行简单介绍,主要介绍了下层控制网络中过程现在总线PROFIBUS-DP协议结构、性质特点,分析了FMS50中各站PLC之间及与上位PC机工控组态软件WinCC之间的数据通信实现方法。

In the paper, S7-300 PLC (programmable logic controller) on the stations of FMS50 teaching system is introduced. The work mainly focuses the agreement structure and character about PROFIBUS-DP. The method of data communication, which is between the PLC on the stations of FMS50 and the industrial control configuration WinCC, was analysed.