简要介绍了OPC DA 规范,描述了OPC DA(数据访问)服务器开发的三种方法:使 用MFC 的COM 库函数开发OPC 服务器、通过ATL 开发OPC 服务器和利用工具包快速开 发OPC 服务器,最后对三种方法的特点作出了比较。 关键词:OPC;ATL;服务器开发 Abstract: Simply describe the OPC DA specification ,then three Methods of server model design based on OPC DA(Data Access) specification are introduced. The three methods are using MFC ATL and the fast developmentToolkit to develop OPC server.At last, compare the characteristics of three methods . Key words: OPC;ATL;Server development