课程设计（论文）-基于plc的电梯控制系统

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1、沈阳航空航天大学课程设计论文基于PLC的电梯控制系统目录0前言·····························································21控制系统总体方案·················································21.1PLC简介·····················································21.2CPU处理模块············································

2、····31.3系统工作原理·················································52三层电梯PLC硬件配置··············································62.1第31页沈阳航空航天大学课程设计论文基于PLC的电梯控制系统三层电梯的I/O分配··········································62.2三层电梯的外部接线·········································63PlC软

3、件设计······················································83.1实验程序流程图···············································83.2实验程序····················································84、三层电梯的监控界面的设计·········································174.1组态软件的概述·························

4、····················174.2第31页沈阳航空航天大学课程设计论文基于PLC的电梯控制系统定义数据词典··············································184.3用户界面的制作············································194.4命令语言的编写············································205总结············································

5、·················28参考文献···························································29基于PLC的电梯控制系统丛厚林沈阳航空航天大学自动化学院摘要：三层电梯是一种用电机正反转控制、自动门开关门控制、轿内指令和层站召唤控制的控制系统。电梯的行车方向由内选信号决定，顺向优先；电梯行驶过程中如有遇呼信号时，顺向截车，反向不截车；内选信号和内呼信号有记忆功能，当自动门到达层站开门时解除记忆功能；自动门到层站时自动开，能够延时关门，停层时，可手动开关门；对电梯

6、上升下降过程进行设定故障报警功能；若没有内外呼梯信号，电梯自动返回第一层待命；开始时，电梯若不在第一层返回第一层。本文主要采用PLC实现对三层电梯的下位机控制，并通过组态软件对上位机进行实时监控.文中首先介绍了PLC和三层电梯第31页沈阳航空航天大学课程设计论文基于PLC的电梯控制系统的工作原理，在设计硬件的基础上，对软件进行设计，采用组态软件建立人机监控界面，包括组态界面的制作方案，功能语言的实现，最后对系统进行调试，并给出相关的参考程序，实现三层电梯的工作过程。关键词：三层电梯；PLC；组态软件0.前言在现代社会和经济活动中，

7、计算机技术、自动控制技术和电力电子技术得到了迅速的发展，电梯已经成为城市物质文明的一种标志。特别是在高层建筑中，电梯是不可缺少的垂直运输设备。随着高层建筑飞速发展的今天，电梯行业也随之进入了新的发展时期,电梯控制技术已经发展到了调频调压调速，其逻辑控制也由PLC代替原来的继电器控制，其许多功能是传统的继电器控制系统无法实现的。　　本设计针对我国电梯业的现状，将可编程序控制器(PLC)应用于三层电梯进行逻辑控制，通过合理的选择和设计，不但提高了电梯可靠性、可维护性以及灵活性，同时延长了使用寿命，缩短了电梯的开发周期，并提高了电梯的控

8、制水平，改善了电梯运行的舒适感，使电梯达到了较为理想的控制效果。本文所设计的电梯与传统的电梯相比，在运行上具有良好的舒适感，在生活中可以节约电能，取得了良好的经济效益和社会效益，达到了理想的目的。该电梯控制系统具有指层、厅召唤、选层选向、手动和自动