基于PLC 的污水净化处理控制系统的设计

本文介绍了利用西门子公司的S7-224 型PLC，来实现含氧化铁杂质的污水净化处
理系统的自动控制，本文详细介绍了系统的硬件配置以及软件设计流程图，并且介
绍了编程中的关键问题。
关键词：PLC 污水净化处理系统顺序功能图 故障诊断 硬件配置 编程方法
竞争调度算法
Sewage treatment control system design based on PLC XIAO Zuo-wu1 CHEN Xiao-zhu2 XIAO Ai-wu3 （1. zhuzhou Professional Technology College, Zhuzhou 412001,China
2. zhuzhou Professional Technology College, Zhuzhou 412001,China 3．Hunan Chemical Professional Technology College,Zhuzhou 412004,China) Abstract: This paper introduced a method of automatic control system design which decontaminate sewage carried with Oxidized iron impurity ,control system based on PLC type of S7-224 belong to Siemens company. in this paper the system's hardware and software is also introduced in detail.
Keywords: PLC; sewage treatment system; sequential function chart; Break down diagnosis;
hardware; programming-skill; competition adjusting calculate way