介紹了OPC (OLE for Process Control) Data Access 規范基本內容Microsoft .NetFramework 特點。基于Microsoft .Net Framework 2.0 介紹了托管代碼和本地代碼之間互操作的方法，用C#給出了實現OPC 客戶端軟件的應用實例，并成功應用于所開發的先進控制軟件平臺，提供了高速、可靠的實時數據傳輸。該方法是在.NET 中利用本地代碼訪問
COM(Component Object Model)組件的有效方法。
關鍵詞：.NET；C# ；OPC；客戶端；組件

Research and application of OPC Client based on Microsoft .NET Framework Yang, Chuanying Huang, Dexian Abstract: The basic content of OPC (OLE for Process Control) Data Access Specification and the characteristic of Microsoft .Net Framework are described .The OPC Client that provides effective and reliable real time data transmission .are programmed with C# that based on Microsoft .Net Framework 2.0 and is applied in the developed advanced control software platform. It is a effective method that is useful to call COM(Component Object Model) in .NET.
Key Word: .Net; C#; OPC; Client; Component