VC#与西门子S7-300的通讯编程源码,类库都编好了,直接调用即可。,VC# With Siemens S7-300 communications programming source code, class libraries are prepared well, you can call directly.

基于WtOPCSvr组件做的OPC服务器，实现了三菱PLC，西门子s7-200通讯，插件式硬件驱动开发，标签可配置(The OPC server based on WtOPCSvr component implements MITSUBISHI PLC, SIEMENS S7-200 communication, plug-in hardware driver development, tag configurable)

主要用于C#开发客户端，用于读写西门子S7-200，S7-300，S7-1200，S7-1500 PLC(Mainly for C# development client, used to read and write SIEMENS S7-200, S7-300, S7-1200, S7-1500 PLC)