来源:https://stackoverrun.com/cn/q/10400663 无法连接到ABB Freelance OPC服务器[无此类接口支持(异常来自HRESULT:0x80004002(E_NOINTERFACE))] 1 我的OPC客户端应用程序使用OPC NET API 2.00时出现问题,所以当我想连接到ABB Freelance OPC Server它在调用Opc.Server.Connect(Opc.ConnectData)方法时会引发异常. 例外: Unable to c
Note: recent OPC standards, including Unified Architecture (UA) and Express Interface (Xi) were designed to natively support .NET. The content of this page largely relates to techniques for using the older COM-based OPC specifications from .NET appli