基于触摸屏和PLC的多路温度监控系统

提出一种具有设备故障自动提示功能的多路温度监控系统．采用三线式PT100温度传感器、DVP-SS系列可编程控制器和2个温度模块DVP-04PT实现8路温度信号的采集与控制;采用触摸屏实现参数的显示、设定、系统故障提示等功能;给出了一种按位显示温度模块错误状态的故障提示方法．实践表明,该系统运行可靠,维护方便,节省调试和维修时间,可广泛应用于32路以下的温度控制．

Multi-channel Temperature Control System Based on Touching Screen and PLC

The paper proposed a multi-channel control system that monitored and controlled temperature and gave an alarm when the device's trouble was checked out.Three lined temperature sensor PT100,DVP-SS program logic controller and temperature module DVP-04PT were used to realize the collection and controlling of 8-channels temperature signal.The touching screen was used to realize the function of displaying and enacting parameters of system,as well as a hint of system's troubles.At the same,a method of hinting temperature module's trouble bit by bit was presented.In practice,the system has the merit of running trustily,maintenance conveniently,saving the time of debugging and maintaining.It can be widely used in temperature controlling within 32-channels.