基于西门子S7-200型PLC的智能供水控制设计  

The Control System Design of Intelligent Water Supply Based on PLC of Siemens S7-200

作　　者：龙建明[1] 

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《杨凌职业技术学院学报》2016年第2期21-24,共4页Journal of Yangling Vocational & Technical College

基　　金：陕西省教育厅专项科研计划项目(14JK1845)

摘　　要：文章以西门子S7-200型PLC为智能核心元件,设计了可能在工作/备用状态下任意切换的两台供水泵电机的自动控制系统,包括控制方案、主电路、控制电路(I/O接线图)、控制程序(梯形图),并阐明了水位信号的PLC识别问题等技术细节,经过生产实际运行检验,设计合理、运行可靠。The automatic control system of water supply pump motor was designed which put Siemens S7-200 as intelligent core components,this system could be randomly switched between operating state and standby state.This paper also described control project,main circuit,control circuit（I/O wiring diagram）,control program（ladder diagram）and expounded technical detail about identifying the problem of PLC that related water-level indicating signal.Through production practice test,the design was reasonable and reliable.

关 键 词：西门子 PLC S7-200 智能供水 控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]