VB通过DF1协议连接AB PLC 支持Micrologix 12-VB through DF1 protocol in support of AB PLC connection Micrologix 1200, etc.

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.

opc ASNC 通信，使用OPCRCW DA 组件实现了对OPC PLC的实时通信。-opc ASNC communication using OPCRCW DA components to achieve real-time communication of the OPC PLC.