毕业设计说明书贮丝生产线PLC控制系统的设计专业电气工程及其自动化学生姓名程欣班级B电气091学号0910601110指导教师朱学来完成日期2013年6月5日盐城工学院本科生毕业设计说明书(2013)毕业设计说明书独创性声明本人声明所呈交的毕业设计说明书(毕业论文)是本人在导师指导下进行的研究、设计工作后独立完成的。除了文中特别加以标注和致谢的地方外,说明书中不包含其他人己经发表或撰写过的研究成果。对本文的研究所做贡献集体和个人,均己在说明书中作了明确的说明并表示谢意。本人完全意识到本声明的法律后果由本人承担。毕业设计说明书作者签名(手写):日期:年月日指导教师签名(手写):日期:年月日盐城工学院本科生毕业设计说明书(2013)贮丝生产线PLC控制系统设计摘要:随着社会的发展和技术的进步,PLC的应用越来越广泛,也越来越方便,而且它的操作界面也较其它简单。现代电气控制技术正是综合了计算机、自动控制、电子技术和精密测量等许多先进的科学技术成果。随着科技的发展和现实暴露的一些问题,为了能更快捷更方便的完成一些任务,在工业生产过程中,经常需要对生产线的生产进行监控和控制。自动控制生产在工厂生产过程中应用非常广泛,比如贮丝生产线、饮料生产线等情况下的自动生产。此次设计的主要目的就是解决目前生产线控制中存在的一些问题,合理地利用PLC的硬件资源和软件资源,充分利用各种指令的简化控制程序,做到控制程序应尽量简单,便于理解,并有一定的规律性以便能适合于不同生产线过程的要求。通过贮丝生产线PLC控制系统的设计,选用现在流行的三菱FX2NPLC在设计中加入了互锁和监测传感器应答信号,采用了步进指令,基本上满足了贮丝生产线工作的要求,并在类似的生产线自动控制中有广泛的应用前景。关键词:PLC;贮丝生产线;控制系统盐城工学院本科生毕业设计说明书(2013)TheDesignofPLCcontrolsystemofwireproductionlineAbstract:Withthedevelopmentofsocietyandtheprogressoftechnology,theapplicationofPLCbecomesmoreandmoreextensive、convenientandalsoitsinterfaceissimple.Modernelectricalcontroltechnologyisthecombinationofcomputer,automaticcontrol,electronictechnologyandprecisionmeasurementandmanyotheradvancedscientificandtechnologicalachievements.Withthedevelopmentofscienceandtechnologyandtherealityofsomeoftheproblemsexposed,inordertobemoreefficientandmoreconvenienttocompletesometasks,intheprocessofindustrialproduction,oftenneedtomonitorandcontrolproductionline.Automaticcontroloftheproductioniswidelyusedinfactoryproductionprocess,suchasautomaticproductionofwireproductionline,beverageproductionlineandsoon.Thedesignofthemainpurposeistosolvethepresentproductionlinecontrolinsomeoftheproblems,reasonableuseofPLChardwareandsoftwareresources,makefulluseofvariousinstructionssimplifycontrolprocedures,tocontroltheprocedureshouldbesimple,easytounderstand,andhaveacertainregularitythatcanbesuitablefordifferentproductionprocessrequirements.ThroughthewireproductionlinePLCcontrolsystemdesign,selectionofthenowpopularMitsubishiFX2NPLCjoininthedesigntheinterlockingandmonitoringsensorresponsesignal,adoptedstepinstruction,basicallymeetthewireproductionlineworkrequirements,andinthesimilarproductionlineautomaticcontrolhasawideapplicationprospectintheelectricalcontroltechnology.KeyWords:PLC;wireproductionline;controlsystem盐城工学院本科生毕业设计说明书(2013)目录1概述............................................................................................................................11.1课题的背景与意义.........................................................................................11.2课题的基本内容与要求................................................................................11.3贮丝生产线控制系统PLC功能及系统构成.................................................32整体方案选择与论证................................................................................................42.1系统方案的选择.............................................................................................52.2选定PLC简介.................................................................................................63贮丝生产线PLC控制系统硬件设计........................................................................73.1PLC控制系统设计步骤.................................................................................73.2控制系统I/O分配........................................................................................73.3电机正反转控制电路设计...........................................................................103.3.1控制电路元器件介绍............................................................................103.3.2电机正反转电路图................................................................................113.3.3主电路图................................................................................................124贮丝生产线控制系统软件设计..............................................................................124.1贮丝生产线控制系统的工作过程..............................................................124.2基本指令介绍...............................................................................................144.3梯形图设计...................................................................................................164.3.11#柜到6#柜光电检测框图..................................................................164.3.21#料进料梯形图....................................................................................164.3.31#柜梯形图设计与说明........................................................................205结束语......................................................................................................................21参考文献.....................................................................................................................22致谢.......................................................................................................................23附录.....................................................................................................................24附录1:主电路图...............................................................................................25附录2:梯形图.................................................................................................