vb源程序，通过vb与三菱PLC通信，源代码-Vb Mitsubishi PLC through communication with the communication with the PLC by Mitsubishi vb

用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现(Using VB to achieve the Client, the realization of S7 - PLC and computer communication, according to the OPC protocol implementation)

用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现(Using VB to achieve the Client, the realization of S7 - PLC and computer communication, according to the OPC protocol implementation)