分布式PLC温度控制系统设计及应用  

Design and Application of Distributed PLC Temperature Control System

作　　者：陈怀丽[1] 江升[2] 方凤玲[1] CHEN Huaili;JIANG Sheng;FANG Fengling(College of Intelligent Manufacturing,Fujian Polytechnic of Information Technology,Fuzhou,Fujian 350003,China;Fujian Academy of Mechanical Sciences,Fuzhou,Fujian 350005,China)

机构地区：[1]福建信息职业技术学院智能制造学院,福建福州350003 [2]福建省机械科学研究院,福建福州350005

出　　处：《福建农机》2022年第2期26-30,共5页Fujian Agricultural Machinery

基　　金：福建省教育厅科技研究项目(JAT201084)。

摘　　要：传统的远红外灯管等温度控制常采用PLC及其AD温度扩展模块、DA模拟量扩展模块来实现。存在成本高、PLC控制能力不足以及就近安装带来的抗干扰性差、信号衰减等问题。设计一款温控模块来解决上述问题。该模块可以与不同厂家的PLC形成分布式控制系统,自主完成闭环温度采集及控制。The temperature control of traditional far-infrared lamps is often achieved by PLC and its AD temperature expansion module and DA analog expansion module. However,there are some problems like high cost,insufficient PLC control capability,poor anti-interference and signal attenuation caused by nearby installation. This project intends to design a temperature control module to solve those problems above. This module can build a distributed control system with PLCs of different manufacturers,and can complete closed-loop temperature acquisition and control independently.

关 键 词：分布式 温控模块 闭环 MODBUS-RTU协约 PID 

分 类 号：TM912[电气工程—电力电子与电力传动]