文档介绍：编号:
毕业设计说明书
课题: 基于PLC的运料小车控制
院系: 机电工程学院
专业: 机电一体化
学生姓名:
学号:
指导教师单位: 桂林航天工业高等专科学校
姓名:
职称: 副教授
题目类型: 理论研究实验研究工程设计工程技术研究软件开发
2012年 4 月 20 日
摘要
早期运料小车电气控制系统多为继电器—接触器组成的复杂系统,这种系统存在设计周期长、体积大、成本高等缺陷,无数据处理和通信功能,必须有专人负责操作,将PLC应用到运料小车电气控制系统,可实现运料小车的自动化控制,降低系统的运行费用,PLC运料小车电气控制系统具有连线简单,控制速度快,可靠性和可维护性好,易于安装、维修和改造等优点。随着经济的发展,运料小车不断扩大到各个领域,从手动到自动,逐渐形成了机械化、自动化。
将PLC应用到运料小车电气控制系统,可实现运料小车的自动化控制,降低系统的运行费用。它功能强大,可扩展到多达128I/O点,且能增加特殊功能模块或扩展板。通信和数据连接功能选项使得FX1N在体积、通信和特殊功能模块等重要的应用方面非常完美。本课题主要包括:分析被控对象和明确系统控制要求;PLC选型;确定系统的I/O设备的数量及种类;控制流程设计;控制程序设计。
PLC在运料小车控制系统中的应用,已经在国内外工程、工厂中得到实际应用,具有巨大的经济和社会价值,其智能化和自动化的思路值得以后继续深入研究和推广。
[关键词] PLC;运料小车控制系统
PLC control car movement designed to transport matreials
Abstract
Traditional transport materials are mostly car relay control, relay control wiring has numerous ings of the high failure rate, and the repair is not easy to maintain the ing. As a control of the current domestic market, the mainstream controller, plc in the market, technology, industry has an important role in the impact of the use of PLC control to replace the relay control has e a trend.
The rapid development of PLC in the international situation, the majority of our PLC manufacturers do not have independent intellectual property rights, to participate in petition PLC products, one of which is the development of strength is not enough. Although the capital investment, production and quality management and other factors also account for a very large proportion, but the quality of the product plays a decisive role in the R & D investment, research and development products and production of crafts. The technology is a part of each of which runs through, PLC core technology development, product follow-up development and production process is to determine the product quality and technical level of the premise, how to further enhance their technical strength,
Domestic brands gain market will be the key petitive advantage.
Based on obtained samples for analysis