文档介绍：编号:
PLC应用实训说明书
题目:PLC交通灯课程设计
院(系): 机电工程学院
专业: 机械制造工程
学生姓名:
学号:
指导教师:
2012年 01月 05日
摘要
近年来随着科技的飞速发展,PLC的应用正在不断地走向深入,同时带动传统控制检测日新月益更新。它具有结构简单、编程方便、可靠性高等优点,已广泛用于工业过程和位置的自动控制中。据统计,可编程控制器是工业自动化装置中应用最多的一种设备。专家认为,可编程控制器将成为今后工业控制的主要手段和重要的基础设备之一,PLC、机器人、CAD/CAM将成为工业生产的三大支柱。由于PLC具有对使用环境适应性强的特性,同时其内部定时器资源十分丰富,可对目前普遍使用的“渐进式”信号灯进行精确控制,特别对多岔路口的控制可方便地实现。因此现在越来越多地将PLC应用于交通灯系统中。
同时,PLC本身还具有通讯联网功能,将同一条道路上的信号灯组成一局域网进行统一调度管理,可缩短车辆通行等候时间,实现科学化管理。在实时检测和自动控制的PLC应用系统中,PLC往往是作为一个核心部件来使用,仅PLC方面知识是不够的,还应根据具体硬件结构,以及针对具体应用对象特点的软件结合,加以完善。十分形象地显示出了PLC在交通灯系统中的实际应用。
本次课程设计用三菱FX2N的可编程控制器控制十字路口信号灯来说明可编程控制器硬件、软件的设计。为十字路口交通灯控制提供可靠的保障,使交通有序、安全、快捷运行的重要环节。
关键词: PLC; 三菱FX2N;交通灯。
Abstract
In recent years, with the rapid development of science and technology, the application of PLC is continuously to the deepening, and push the traditional control test on the new beneficial update. It is simple in structure, convenient programming and high reliability etc, are widely used in industrial process and the location of the automatic control. According to the statistics, the programmable controller is used in the industrial automation devices a kind of most equipment. Experts think, programmable controller will be the major means of industrial control and important basic equipment is one of PLC, robots, CAD/CAM will e industrial production the three pillars. Due to the use of PLC has the characteristics of strong adaptability to the environment, and the internal timer is very rich in resources, but the current widely used "progressive" precise control signal, especially for much of the fork in the control can be realized. So now more and more will PLC in the traffic light system.
At the same time, PLC itself also working function, will be the same path of light a LAN unified dispatching management, can shorten the traffic waiting time, realize scientific management. In real time detection and automatic control of PLC application system, the PLC is often as a ponent to use, only PLC aspects knowl