摘 要

可编程控制器(简称PLC或PC)是一种新型的具有极高可靠性的通用工业自动化控制装置。它具有控制能力强、可靠性高、配置灵活、编程简单、使用方便、易于扩展等优点。目前，可编程控制器成为工业自动化领域中最重要、应用最多的控制装置，居工业生产自动化三大支柱(可编程控制器、机器人、计算机辅助设计与制造)的首位。其应用的深度和广度成为衡量一个国家工业自动化程度高低的标志。应用PLC成为世界的潮流，PLC将在我国得到更全面的推广应用。

企业现代化生产规模的不断扩大和深化，使得仓库成为生产物流系统中的一个重要且不可缺少的环节。立体仓库正以它最小的占地面积和最佳的空间利用率，逐步替代面积利用率极低且陈旧落后的平面仓库，这种替代促使仓储物流业的水平提高。为满足现代化生产与流通的需要，就必须采用以计算机控制技术为主要手段组成的自动化立体仓库控制系统。自动化立体仓库为现代物流系统的主要设备，是一种多层存放货物的高层仓库系统。也是CIMS的集成环节之一，在FMS和FAS中占有非常重要的地位。

关键词：可编程控制器；立体仓库；控制系统

Abstract

Programmable Logic Controller (PLC) is a modern control equipment of industrial automation which has highly reliability .It has a lot of merits .Such as strong holding capacity、highly reliability、assignment flexibility、compiling program easily、used expediently and expansion easily .At present ，PLC becomes the most important in industrialization realm and the most application control device .It is the first place in the three supports of the industrial automated production (PLC、Industrial robot 、Computer-aided design and manufacture ). It is trend of the times of the world to use PLC and PLC will be used speedily overall in our country.

With the produce scale of modernization business is more and more expander and deeper , warehouse is more important and indispensable in producing procedure system .Stereoscopic warehouse which takes smallest are and the best utilization ratio in space instead of plane warehouse .this can improve the level of the warehouse procedure .It needs to use Solid Automated Warehouse (SAW) which is made of computer control technology to be full of modernization produce and circulate .SAW is the main equipment in the modern circulate system and not only one of CIMS integrated link but also strong status in FMS and FAS .

Key words: Programmable Logic Controller; Stereoscopic warehouse; The control system

目 录

TOC \o "1-3" \h \z \u 1 引 言 1

2 PLC的简介 2

2.1 可编程控制器发展史 2

2.2PLC的构成 3

2.2.1CPU模块 3

2.2.2I/O模块 4

2.2.3 电源模块 4

2.3可编程控制器实现控制的要点 4