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基于COM/DCOM技术的OPC是工业控制界流行的软件互操作标准。文中介绍了OPC技术,提出了实现INFI-90数据开放的基本软件构架。INFI-90为系统的数据开放提供了多种接入方式,文中分析并比较了INFI-90系统与外部系统通信的几种方式。在此基础上,将OPC技术与INFI-90系统提供的实时数据开放接口相结合,开发了INFI-90实时数据OPC服务器,实现了INFI-90实时数据的真正开放与共享。
OPC based on COM / DCOM technology is a popular software interoperability standard in industrial control field. This paper introduces the OPC technology and puts forward the basic software framework to realize the openness of INFI-90 data. INFI-90 provides a variety of access methods for the data openness of the system. In this paper, several ways of communicating with the external system by the INFI-90 system are analyzed and compared. On this basis, the OPC technology and real-time data interface provided by INFI-90 system are combined to develop INFI-90 real-time data OPC server, which realizes the real openness and sharing of INFI-90 real-time data.