八层电梯的plc控制毕设毕业论文.doc

摘要
PLC作为新一代的工业控制器,已广泛应用于各个领域的控制系统,在本文中我就阐述了PLC的一些具体概念,在电梯控制方面的设计步骤,以及用PLC对电梯硬件进行保护的方法。在设计中我具体讲述了电梯在使用PLC控制时的硬件和软件的设计过程,列出了具体的主要硬件电路,并分析了主要输入输出点的作用。在PLC的电梯控制系统中,电梯的使用功能都是通过控制软件来实现的,为了使控制软件和电梯的运行动作有较好的对应关系,电梯的软件控制程序,我主要分为楼层的显示程序、呼叫信号程序、上下行程序、开关门程序,各司其职,对电梯的运行进行控制。
本次毕业设计使用三菱FX2N-48MR型PLC模拟进行八层电梯运行的仿真设计。
关键词:PLC;电梯;控制
Abstract:
PLC has been widely applied for control systems of many demesnes as a new generational industry controller. In this thesis, I expound some concepts of PLC, the design course of PLC control elevator and the protective methodology of elevator hardware with PLC. In the design I explain the design course of hardware and software about PLC control elevator, and the specific main hardware circuit. It also analyzes the use of main input point and output point. In the PLC control system, the using functions are achieved by control software. To have a better correspondence relationship between control software and the action of elevator and easy to debug and assert, I use pattern edit program. And explain three working mode of elevator of working. I divide the control software for parts: display program of floor, calling program, direction program, switch door program, transform speed program. They played to control elevator working correctly.
This system is a design to use Mitsubishi FX2N-48MR PLC to control a eight-floor simulation model.
KEYWORDS: Elevator, PLC, Ladder Diagram
目录
1. 绪论 1
1
1
2
3
3
系列可编程序控制器介绍 4
4
PLC的性能指标和分类 4
可编程序控制器的工作方式 6
PLC的编程语言 7
、微机在电梯控制中的应用比较 7
8
8
(输入继电器) 8
输出信号(输出继电器) 10
电梯输入输出原理图 12
14
4. 八层电梯控制程序详解 15
电梯平层和停层装置示意图 15
15
16
平层信号指示灯 23
蜂鸣器 25
电梯下行程序 25
25
25
26
27
28
28
29
电梯下行总控制程序 29