开源.net HMI 框架,框架包含AB，Opc等plc驱动和免费的桌面环境控件.-a free and “almost open-source” HMI framework written in VB.Net that offer some drivers for PLCs, and also offer free SCADA objects for winforms users.

采用C++ 实现的OPC 客户端，可以连接组态王等SCADA软件(C++ implementation of the OPC client, you can connect king view and other SCADA software)

采用java 实现的OPC服务端，可以连接组态王等SCADA软件(Java implementation of the OPC server, you can connect king view and other SCADA software)