C#读取OPC server

1.安装opc server

https://blog.csdn.net/yhtppp/article/details/80676118

2.c#读取opc

https://github.com/leogle/OPCAutomationDotNet

 var client = new OPCClientWrapper();
 client.Init("127.0.0.1", "Matrikon.OPC.Simulation.1");
 //client.MonitorOPCItem("DCS001.TEST08");
 //var res = client.ReadValue("DCS001.TEST08");
 //client.Write("DCS001.TEST08","试试");
 var value = client.ReadNodeLabel("DCS001.TEST08");
 client.Write("DCS001.TEST08", "试试"+DateTime.Now.ToLongTimeString());

 client.Disconnect();

3.

检索COM 类工厂中 CLSID 为 <28e68f9a-8d75-11d1-8dc3-3c302a000000> 的组件时失败，原因是出现以下错误： 80040154

一定要到C:\Windows\SysWOW64路径下打开cmd.exe运行命令文件（而不是在运行打开),注册“OPCDAAuto.dll” 输入命令: REGSVR32 OPCDAAuto.dll;即可

https://www.cnblogs.com/ike_li/p/5468658.html
网上搜OPCDAAuto.dll，用228k大小的