1000字范文 > 在plc中用c语言实现电梯控制程序基于PLC的电梯控制系统的设计与实现[论文+答辩ppt+

在plc中用c语言实现电梯控制程序基于PLC的电梯控制系统的设计与实现[论文+答辩ppt+

时间：2024-01-23 00:01:47

摘要

电梯是当今楼房等高层建筑不可或缺的运输工具，可以用来快速方便的运输物品和乘客，较早的电梯控制系统普遍采用接触器和继电器协同使用进行控制，这种控制方式有其一定的缺点如：触点比较多，故障率比较高从而其运行可靠性差，进而导致维修工作量大等。近代，随着可编程控制器的发展，使用 PLC为主要控制器的控制系统使电梯运行更加安全、方便、舒适，可以很大程度上解决上述问题，日前已在电梯行业得到了较好的应用。

本文采用可编程控制器PLC对电梯进行控制，经过合理的选择和设计，很大程度上提高了电梯的控制水平，并改善了乘坐电梯时的舒适感，通过对控制方式的研究，使电梯达到了较为理想的控制效果。并对目前电梯监控工程中一个常见的问题“干扰”进行了研究分析，首先分析了电缆的选择原则，给出了电梯监控系统的布线技巧；其次分析了电梯监控系统的干扰因素，给出了避免办法。

本文首先阐述了PLC在电梯控制系统中的应用情况。分别提出了四层电梯的PLC控制系统总体设计方案、设计流程以及系统组成，给出了主要的具体硬件电路、PLC电梯控制系统梯形图及指令表程序。其次给出了系统组成框图，并在分析、处理随机信号逻辑关系的基础上，提出了PLC的编程方法，给出了PLC控制电梯升降的程序。最后用组态王组态软件实现了对PLC控制的四层电梯的模拟运行。通过使用组态软件中命令语言编写的程序，模拟电梯的轿厢和门执行相应的动作，通过画面上的楼层指示灯和显示器来显示电梯的各种状态信息。

关键词：可编程控制器；PLC；组态王

Abstract

The elevator is the high-rise construction essential transport means, uses in vertical shipping the passenger and the cargo, the traditional elevator control system mainly uses the relay. The contact device carries on the control, its shortcoming is the electronic contact are many, failure rate high, reliability bad, service work load big and so on, but uses the PLC composition the control system to be possible to solve the above problem well, causes the elevator movement to be safer, to be convenient, is comfortable. At present obtained the widespread application in the elevator profession. In the layer and the control function few situations; use the PLC control to be advantageous.

The article elaborated programmable controller PLC in the elevator control application. Mainly introduced four elevator PLC control system overall project designs, the design process, the composition, have listed the concrete main hardware electric circuit, the elevator control ladder diagram and the instruction list.

And giving the system composition diagram and the program flow diagram, in the analysis, in the processing random signal logic relations foundation, proposed the PLC programming method.Using the kingview6.53 configuration software realize the PLC control of the four layers of computer simulation, the elevator with PLC through serial communication exchange information with PLC to control, "virtual" the elevator. Through the configuration software command language program, make the virtual elevator of the car door and executes action, use pictures of the indicator and the floor to display monitor from the various states information with PLC.

Key words: elevator; Programmable Logic controller; configuration software;

摘要I

AbstractII

绪论1

1.电梯的国内外发展情况1

2.课题研究的意义及内容1

1 电梯和PLC的简介3

1.1电梯的结构及特点3

1.2电梯的组成[9]3

1.3 PLC的结构及特点5

2 电梯控制系统的硬件设计7

2.1电梯的控制要求7