分布式工业控制系统通信功能的研究

Study on Conmunication Function of Distributel Industrial Control System

本文针对以ＩＢＭ－ＰＣ及其兼容机做为上位机、以ＳＴＤ系列工业控制机做为下住机组成的分布式工业控制系统，介绍一种远距离实时数据通信方案，并讨论了通信硬件接口电路的设计及通信软件的设计方法。实际应用结果证明，该通信系统简单可靠，能满足实时控制的要求。

In this paper,counfering the distributed industrial control system consisting of upper microcomputer using IBM PC & its compatible computer,and microcomputer using STD series industrial control system, a scheme of remote real time data communication is introduced while the design of the interface circuit for communication hardware and that of communication software are discussed.It is shown by the result in practical application that the communication system is simple & reliable,and can be meet the needs of real-time control.