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集散控制是当前过程控制的发展趋势 ,笔者设计了一种由一台微机和多台 80 31单片机按支型网络构成的简易集散控制系统 (SDCS) ,它能较好地应用于工业废水处理等具有滞后作用的过程控制中 在集散控制系统中网络通信功能是其基本功能之一 ,也是其实现分布式控制的基础 根据 80 31单片机多机通信的特点设计了一种主从式串行异步通讯协议 ,并在此基础上 ,介绍了如何在Windows环境下设计和实现SDCS通讯软件的方法
Distributed control is the current trend of process control. I designed a simple distributed control system (SDCS) composed of a microcomputer and multiple 8031 single-chip network by branch network, which can be better applied to industrial wastewater treatment Has a hysteresis in the process control In the distributed control system network communication function is one of its basic functions, but also to achieve the basis of distributed control According to the characteristics of the 8031 single-chip multi-machine communication designed a master-slave serial asynchronous communication Protocol, and on this basis, describes how to design and implement SDCS communication software in Windows environment