此方法实现比较简单，只要根据提供的名子循环从组列表中找到该组的接口指针，并返回给客户端-this method is relatively simple. as long as the basis of the name from the group circulating the list to find the target group interface, and back to the client

VB与西门子WINCC 组态软件的OPC通讯 工业常用。

It provides an example of OPC data interface as client in MS-Excel. The code is written in VB scr ipt in excel workbook which imports data from S7 PLC via OPC protocol through MPI interface.