VC6.0编程客户端访问组态王OPC服务器的方法

Method of VC6.0 Programming Client Accessing to OPC Server of KingView

摘要: 介绍了OPC技术的体系结构原理和OPC客户端程序设计方法，提出了使用定制接口访问数据的OPC客户程序的方法，利用VC6.0编写了OPC客户端应用程序，详细介绍了OPC客户端应用程序实现的步骤。该方法使用组态王作为服务器，通过组态王的OPC接口来访问数据库中的数据变量，实现了OPC编程客户端与组态王OPC服务器之间的数据交换。

Abstract: The paper introduced architecture principles of OPC technology and programming methods of OPC client, and put forward a method of OPC client program to use customized interface to access data. It designed OPC client application program with VC6.0 programming, and introduced implementation steps of OPC client application program in details. Using KingView as OPC server, the method achieves data exchange between OPC client program and KingView OPC server by OPC interface to access variable data in database.