用MPI连接Simatic net OPC Server 和PLC的说明文档-Connect the SimaticNET OPC Server and PLC with MPI

java实现opc客户端远程连接服务端并读取数据-java achieve opc client remote connection server and read the data

OPC的高级语言实现上位与下位的程序连接及通信，介绍OPC应用程序深入剖析及相关PLC和高级语言编程。-The high-level language OPC to achieve the upper and lower program connection and communication, the introduction of deep analysis of OPC applications and related PLC and advanced language programmi