基于PLC控制的实验电梯监控系统研究

Study on Monitoring System of Experimental Elevator Based on PLC

目前各工科院校都开设了PLC课程,针对PLC的实验课,电梯是常用的典型被控对象,主要研究在当前教学形势的发展下,将可编程序控制器(PLC)应用于电梯进行逻辑控制,借助于计算机的控制系统监控软件-组态软件,生成画面中的图形对象并实现与PLC的通信,来模拟PLC被控对象。为增强实验课的教学效果,针对实验室的电梯模型(电梯模型用CPU224型PLC控制,具有实际电梯的基本功能),利用西门子S7-200可编程控制器编写了相关的控制程序,用"组态王"软件制作的人机界面实现了对PLC控制的4层电梯的监控。该系统具有很重要的教学和实际意义。

This paper studies in the current teaching situation of development,programmable logic controller （PLC） is applied to the elevator,with the help of computer control system monitoring software-software configuration,creating screen the graphi-cal object and the realization of communication between PLC and PLC,to simulate the controlled object.To strengthen the experiment teaching effect,according to the laboratory model lift （elevator model using CPU224 PLC control,with the basic functions of the lift）,use of Siemens S7-200 programmable controller to prepare the relevant control program,with ＂King＂ software interface to achieve control of PLC 4 laver elevator monitoring.