基于PLC的台车呼叫控制系统的设计与实现.doc

I 内容摘要: 本设计是一个基于可编程控制器( PLC )西门子 S7-200 的台车呼叫控制系统,它能够指示台车的停车位和呼叫使能,是否可以呼叫及台车是否到位,能够实现电机正转,电机反转,可以紧急停车等功能。设计阐述了可编程控制器西门子 S7-200 的功能特点以及操作,提出了系统的总体设计方案。本系统具有价格低廉、高可靠性、高性能和智能化的特点。通过该系统的成功研制和应用,生产效率将大幅度提高,工人的劳动强度将大幅度降低,控制精度也将进一步提高。关键字: PLC 台车呼叫自动控制 D esign of the calling control system about troller A bstract : The design isbased onprogrammable pleted (PLC) II Siemens S7-200 inthe troller calling control system design and implementation, toindicate troller parking spaces and the calling isenabled, ifyou can cal l and the troller isinplace, are transferred tothe motor, motor reversal, can beanemergency stop and other functions. Describes the design ofSiemens S7-200 programmable concallings features and operation, proposed overall system design. The system has alow cost, high reliability, high performance and intelligent features. The ess ofthe system through the development and application of productivity will greatly increase, the labor intensity will begreatly reduced, the control accuracy will befurther enhanced. Key words: Programmable Logic Controller troller motor 目录前言............................................................................................................................................. 1 1系统设计方案....................................................................................................................... 1 III 方案的总体框架........................................................................................................ 1 PLC 硬件安排及软件规划................................................................................. 1 控制要求.................................................................................................................... 2 外围设备和 I/O 地址分配........................................................................................ 2 2可编程序控制器................................................................................................................... 5 可编程序控制器概述.........................................