PID优化整定系统中OPC接口的研究与应用

Research and application of OPC interface in PID optimization and setting system

OPC是一个开放的工业接口标准,被用于过程控制和制造业自动化系统。本文通过OPC接口在PID优化整定系统中的应用,介绍了DCS和OPC的基本概念,以及OPC接口的相关知识和数据存储访问方式;同时结合实际介绍了为实现各系统间数据交换,应用OPC通讯技术所搭建的系统网络结构,以及OPC服务器端和客户端开发的基本步骤,数据存储过程的实现;最后,讨论了PID优化整定系统中OPC接口的应用在工业现场领域中的优点以及发展前景。

OPC is an open industry, standard interface, used in process control and manufacturing automation system. In this article, through the application of OPC in PID optimization and setting system, concepts of DCS and OPC are introduced. Also, data read and storage access of OPC are presented. Meanwhile, according to practical application of OPC, network structure of data collection between systems, and steps of development of OPC server and client and process of data storage access are presented. At last, ad- vantages and future application of OPC using in PID optimization and setting system in industry field are discussed.