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自控课程设计报告

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基于PLC的三层电梯系统的设计

摘要

PLC（可编程控制器）作为一种工业控制微型计算机，它以其编程方便、操作简单尤其是它的高可靠性等优点，在工业生产过程中得到了广泛的使用。它使用大规模集成电路，微型机技术和通讯技术的发展成果，逐步形成了具有多种优点和微型，中型，大型，超大型等各种规格的系列产品，使用于从继电器控制系统到监控计算机之间的许多控制领域。

随着社会的不断发展，楼房越来越高，而电梯成为了高层楼房的必须设备。电梯从手柄开关操纵电梯、按钮控制电梯发展到了现在的群控电梯，为高层运输做出了不可磨灭的贡献。

PLC在电梯控制上的使用主要体现在它的逻辑开关控制功能。由于PLC具有逻辑运算，计数和定时以及数据输入输出的功能。在电梯控制过程中，各种逻辑开关控制和PLC很好的结合，很好的实现了对电梯的控制。

本文主要讨论研究利用西门子公司的可编程控制器对三层电梯的控制，形成电梯控制系统。

关键词：plc 电梯； 控制系统； 电梯系统运行检修和调试

The Design of Three Elevator System

Based on PLC

Abstract：PLC (Programmable Logical Controller) took one kind most important, the application situation most industries control microcomputer, it is convenient, operation simple in particular by its programming merit and so on redundant reliability, obtained the widespread application in the industrial production process. It applies the large scale integrated circuit, the miniature machine technology and the communication technology development achievement, gradually formed had the many kinds of merits and miniature, medium, large-scale, ultra large-scale and so on each kind of specification series product, applied to monitors between the computer from the control system many controls domain.

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Along with society's unceasing development, the building is more and more high, but the elevator became the high level building to have the equipment. After humanity's more than centuries unremitting endeavors, the elevator already from the handle switch operation elevator, the push-button control elevator develops to the present group control elevator, has made the indelible contribution for the high level transportation.

PLC in the control in the elevator the application mainly to manifest in its logical switch control function. This function enable PLC to have the logic operation, counts with fixed time as well as the data feeds output function. Rises and falls in the process in the elevator, each logical switch control and PLC very good union, very good realization to fluctuation control.

This article main discussion studies using sinmens Corporation's PLC molding machine carries on the control to the 3-floor elevator fluctuation, forms the elevator control system

Key words: the PLC; control system; elevator systems operation overhauls and debugs

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