基于PLC的运料小车控制系统设计-学士论文

分类号单位代码密级学号0705230150学生毕业设计（论文）题目基于PLC的运料小车控制系统设计与实现作者张汇江院(系)能源工程学院专业电气工程及其自动化指导教师张涛答辩日期2011年5月日榆林学院毕业设计（论文）诚信责任书本人郑重声明：所呈交的毕业设计（论文），是本人在导师的指导下独立进行研究所取得的成果。毕业设计（论文）中凡引用他人已经发表或未发表的成果、数据、观点等，均已明确注明出处。尽我所知，除文中已经注明引用的内容外，本论文不包含任何其他个人或集体已经公开发表或撰写过的研究成果。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标明。本人毕业设计（论文）与资料若有不实，愿意承担一切相关的法律责任。论文作者签名:年月日基于PLC的运料小车控制系统设计与实现I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。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,I/O点基于PLC的运料小车控制系统设计与实现IIABSTRACTEarlyelectriccarcontrolsystemofthetransporterovertherelay-contactorcomplexsystemcomposedofThesystemdesigncycle,thereisalong,bulky,highcost,defects,nodataprocessingandcommunicationsfunctions,mustbehandoperated,willbeappliedtotransportmaterialscarPLCelectricalcontrolsystemandcanrealizeautomaticcontroloperationofthecar,reducingtherunningcostsofthesystem,PLCcontrolsystemforelectriccartransporterwithasimpleconnectiontocontrolspeed,reliabilityandmaintainabilityisgood,easytoinstall,repairandimprovementandsoon.Witheconomicdevelopment,transportmaterialstovariousareasofgrowingcar,frommanualtoautomatic,andgraduallyformedthemechanizationandautomation.PLCappliedtotransportmaterialstocarelectricalcontrolsystemandcanrealizeautomaticcontroloperationofthecarandreducesystemoperatingcosts.CommunicationsanddataconnectivityoptionsmakeFX1Ninvolume,communicationsandspecialfunctionmodulessuchimportantapplicationsperfectly.Thetopicsinclude:analysisofplantandaclearsystemcontrolrequirements;PLCselection;determinethesystem'sI/Odevicenumberandtype;controlprocessdesign;controlprogramming.PLCcontrolsysteminthecartransporterintheapplication,hasbeenindomesticandinternationalprojectshasbeenappliedinthefactory,withhugeeconomicandsocialvalue,theintelligenceandautomationbeyondtheideaworthyoffurtherresearchandextension.Keywords：PLC，transportercart，controlsystem，I/Opoints基于PLC的运料小车控制系统设计与实现III目录摘要....................................................................................................................................................IABSTRACT.........................................................................................................................................II目录..................................................................................................................................................III1绪论............................................................................................................................................11.1课题的提出背景...................................................................................................................11.2运料小车的发展概况...........................................................................................................21.3课题的意义及应用...............................................................................................................31.4本课题的主要工作...............................................................................................................32可编程控制器(PLC)的概述...........................................................................................................42.1PLC的定义...........................................................................................................................42.2PLC的发展...........................................................................................................................42.3PLC的特点...........................................................................................................................52.4PLC的基本组成及各部分的作用........................................................................................62.5PLC的应用领域....................................................................................................................82.6运料小车控制系统图...........................................................................................................92.7PLC选型.............................................................................................................................112.7.1选型分析................................................................................................................112.7.2系统的安装............................................................................................................112.7.3输入/输出模块选择..............................................................................................112.7.4开关量I/O点的节省和模拟量I/O模块的代用................................................122.7.5抗干扰措施............................................................................................................122.8系统资源分配.....................................................................................................................132.8.1I/O地址分配............