电动运输车呼车PLC控制系统设计5.doc

目录
引言……………………………………………………………………………………3
可编程控制器概述……………………………………………………………………5
PCL的基本结构和工作原理…………………………………………………………6
工艺过程……………………………………………………………………8
系统控制方案……………………………………………………………… 9
PLC系统选择………………………………………………………………9
I/O地址分配……………………………………………………………… 9
程序设计……………………………………………………………………11
感谢信………………………………………………………………………………12
小结………………………………………………………………………………13
参考文献…………………………………………………………………………14

电动运输车呼车PLC控制系统设计
摘要:随着经济的发展,台车呼车控制系统在医药、冶金、建材、饲料加工等行业被广泛地用于物料的自动配置。实现物料的自动配置控制,不仅节省了人力和物力,而且也提高了产品的质量,提高了生产率,同时也可以实现现代化科学管理。
本设计介绍的是基于可编程控制器西门子S7-200的台车呼车控制系统的设计与实现,能够指示台车的停车位和呼车使能、是否可以呼车及台车是否到位、能够实现电机正转、电机反转、可以紧急停车等功能。
本文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。
With economic development, the control system of car call in medicine, metallurgy, building materials, feed processing industries are widely used in the automatic configuration of materials. Automatic configuration to achieve control of materials, not only saves manpower and material resources, but also improved product quality, increase productivity, but also can achieve modernization and scientific management.
Papers presented is based on Siemens S7-200 programmable controller of the car call control system for vehicle design and implementation, to indicate car parking spaces and car call enabled, can call cars and car is in place, can be achieved the motor is transferred, the motor reversal, can be an emergency stop and other functions.
In this paper, Siemens S7-200 programmable controller's features and operation. Proposed overall system design.
The system has a low cost, high reliability, high performance and intelligent features.
ess of the system through the development and application of productivity will increase dramatically, the labor intensity will be greatly reduced, the control accuracy will be further enhanced.

关键词:可编程控制器;呼车;西门子S7-200
引言
PLC技术代表了当今电气程序控制的世界先进水平。它与数控技术,工业机器人技术已成为***自动化和CIM的三大支柱。据预测,在90年代,美、日、德