实时监控系统中的新技术——OPC标准

A New technology in the Real Time Supervisory and Control System-OPC Standard

简要介绍了实时监控系统中的一种新技术———OPC标准,介绍了该标准产生的背景及优点,对OPC接口的结构体系进行了简要介绍。详细介绍了OPC数据访问自动化接口,给出了VB程序连接OPC服务器的详细代码。

This paper introduces a new technology in SCADA Applications.It describes the background and advantanges of OPC.The structure of OPC Interface and OPC Data Access Standard are described in detail.A general method to develop a program based on OPC in VB language is given also.