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烟台大学毕业论文（设计）[摘要]本文介绍了由西门子S7-200PLC控制的六层电梯模型的结构、实现的功能以及西门子S7-200PLC的I/O接口分配和对电梯系统的程序设计等。通过对六层电梯控制系统的流程设计，完成了控制开关门操作和在运行模式下的呼叫提示、上下运动、启动、延时2s关门、平层泊车、开轿厢门、信号排队等控制性能。经过编写程序软件、安装硬件以及与六层双部电梯模型的联调，使得六层电梯模型能够在运转的过程中显明的表现出来。使用两台西门子S7-200PLC作为控制器交替和计算机通信结合到电梯的控制系统中去。采用MCGS组态作为上位机监控电梯运行，出现故障报警，实时数据存盘。主要实现的功能：双部并联控制、保持开门时间2S控制、本层厅外开门、门开到位后会延时2S关门、开门按钮开门、换站停靠、轿内照明控制、层楼显示字符设置、显示器、超载保护、门缝防夹保护、上下楼标示，脉宽调速（PWM）。[关键词]西门子S7-200PLC；六层电梯；双部并联；MCGS组态；脉宽调速烟台大学毕业论文（设计）Abstract:Thisarticledescribesthesix-layerstructureparallelliftfordoubleunit,thefunctionsandSiemensS7-200PLCofI/Ointerfacesareassignedtotheelevatorsystemandprogramdesign.Wehavecompletedalotoffeaturesthroughsixelevatorcontrolsystemprocessdesign,suchasthroughacontrolswitchdooroperationandcalltipsinrunmode,theupanddownmovement,startdelay2sclose,levelingparking,opencardoorThesignalwaitinline.Connectthehardware,thecompiledsoftwareprogramsdownloadedtothePLC,thecommissioningofsixelevatorsmodelmakestheadvantagesofparalleltwinunitduringoperationoftheelevatorcanbemanifestedindistinct.ThecontrollercanachievecontroloftheelevatortogetherusingtwoPLCandcomputercommunication.MCGSasaPCmonitorelevatorrunning,failurealarm,real-timedataachievingandarchiving.Mainfunction:thetwoparallelcontrolunit,holdopentime2Scontrol,outsidethishalldoor,openthedoorinplacewilldelay2sclosed,openbuttontoopenthedoor,fordockingstations,carinteriorlightingcontrols,floordisplaycharactersetdisplay,overloadprotection,doorjamprotection,markingdownthestairs,PWMspeedcontrol(PWM).Keywords:SiemensS7-200PLC;Sixelevators;Doubleportionparallelconfiguration;MCGS;PWM烟台大学毕业论文（设计）目录1绪论...........................................................................................................................................11.1论文的背景......................................................................................................................11.2系统设计方案的步骤......................................................................................................11.3本设计主要的要求及内容..............................................................................................11.3.1系统设计的主要要求——下位机部分...............................................................11.3.2系统的设计的上位机部分...................................................................................21.3.3设计步骤...............................................................................................................21.4本章小结..........................................................................................................................22变频器的原理与应用...............................................................................................................32.1变频器..............................................................................................................................32.1.1变频器的原理.......................................................................................................32.1.2变频器的选型.......................................................................................................32.2变频调速系统控制..........................................................................................................42.3本章小结..........................................................................................................................43系统控制方案的设计及概述(下位机部分)............................................................................53.1PLC应用及其原理..........................................................................................................53.1.1PLC应用及其工作原理........................................................................................53.2系统硬件设计..................................................................................................................63.2.1系统的外观............................................................................................................63.2.2运动系统...............................................................................................................73.3软件设计........................................................................................................................123.3.1系统的工作原理介绍.........................................................................................123.3.2系统功能实现分析与介绍.................................................................................133.4本章小结........................................................................................................................204MCGS组态的设计及概述(上位机部分)............................................................................214.1MCGS组态概述.............................................................................................................214.1.1绪言.....................................................................................................................214.1.2MCGS通用组态的特点......................................................................................214.1.3MCGS组态界面介绍..........................................................................................214.2组态MCGS与西门子PLC200的通信.....................