基于PLC车库自动门控制系统电气设计.docx

学院毕业设计(论文)  PAGE 29 PAGE  毕业设计(论文) 题目: 基于PLC的车库自动门控制系统电气设计 摘 要 本文是基于S7-200自动门控制系统的设计，自动门系统主要由可编程控制器（PLC）、感应器件、驱动装置和传动装置组成。主要工作原理是感应器件将检测到的人体或物体信号传送到PLC，PLC再综合收到的自动门状态信号作出判断，然后经A/D转换发出控制信号，使驱动装置运行，在通过传动装置带车库门的升降。 随着电子技术的发展，PLC不断的更新，PLC控制已成为自动控制中最常见的方式之一。自动门就是PLC自动控制应用的一典型例子，由于可编程控制器具有很好的处理自动门开关控制及良好的稳定性，而且可以很简单的改变控制的方式，因此，自动门的生产商家很多都运用PLC来做门的控制器。目前自动门在日常生活中用越来越广泛。PLC控制具有较高的可靠性、稳定性、维修方便等优点。 主要阐述了车库自动门的设计思想与程序编制, 应用PLC作为现场控制器，对现场设备进行信号采集与控制。控制的说明、系统流程图、外部接线图、梯形图必要的文字说明介绍了以PLC为应用的车库自动门的系统软件设计。 关键词：可编程控制器 S7-200；置位复位指令；顺序控制指令；PLC控制  Abstract This paper is the design of the automatic door control system based on S7-200, the automatic door system is mainly composed of a programmable logic controller (PLC), an induction device, driving device and a driving device. The main working principle is that a body or an object signal induction device will be detected to judge the state of PLC, automatic door then received PLC signal, and then sends the control signal, the driving device is driven by a driving device in operation, the door. With the development of electronic technology, update the PLC constant, PLC control has become one of the most common mode of automatic control. Is the application of automatic control automatic door with a typical example, the programmable controller has good processing automatic door switch control and good stability, and can be very easy to change the control mode, therefore, the controller of automatic door production businesses are using PLC to do the door. The automatic doors in daily life more and more widely used. PLC control, stability, reliability, convenient repair has the advantages of high. Mainly on the design and programming of the automatic garage doors, using PLC as the field controller, signal acquisition and control of