机械制造与自动化Issue(3)：189-190,2.
S7-200PLC在除湿机控制系统中的应用
Application of S7-200 Programmable Logic Controller in Control of Dehumidifier
罗锋华 1刘建春1
作者信息
- 1. 江西现代职业技术学院,江西南昌,330095
- 折叠
摘要
Abstract
This paper uses S7-200 PLC as main controller to design a dehumidifier control system, which is equipped with HMI TD400C and communication module EM277. The frequency-out mode sensors or transducers are used to acquir the temperature and humidity datum. The frequency signals are connected to the high speed counter of PLC. The pulses are counted at regular time to obtain the sampling value. The control instruction can be got from the digital input interface,TD400C and upper computer,and the running status can be displayed on digital output interface and TD400C or transferred to upper computer.关键词
PLC/人机界面/通信模块/高速计数器/除湿机Key words
PLC/HMI/ communication module/high speed counter/dehumidifier分类
机械制造引用本文复制引用
罗锋华,刘建春..S7-200PLC在除湿机控制系统中的应用[J].机械制造与自动化,2011,(3):189-190,2.
