C#编程实现选煤厂上位管理系统与PLC通信

The realization of communication between the upper managing system and PLC by C# programming

介绍了西门子PRODAVE软件公开的动态链接库函数,阐述了利用C#调用PRODAVE软件中动态链接库函数的方法,并以介休宝平煤化公司选煤厂自动化系统为例,介绍了如何运用C#编程以MPI方式实现上位控制计算机与西门子S7-300系列PLC之间的通信。

Introduced the dynamic link library function which published by PRODAVE software of Sie- mens, described the method of using C# call for the dynamic link library function in PRODAVE software, and take the automatic system of Jiexiu Baoping coal preparation plant as an example, detailed introduced how to use C# programming and realizing the communication in MPI mode between the upper control computer and Siemens S7 -300 series PLC.