摘要PAGEII摘要随着现代城市的发展，高层建筑日益增多，电梯成为人们日常生活必不可少的代步工具。电梯性能的好坏对人们生活的影响越来越显著，因此必须努力提高电梯系统的性能，保证电梯的运行高效节能又安全可靠。传统的电梯控制系统采用的是继电器逻辑控制电路，这种控制易出故障，维护不便，运行寿命短，占地空间大，正逐步被淘汰。可编程控制器由于具有可靠性高、功能强大等特点已经成为电梯微机控制系统的核心。本文在阐述电梯的结构和可编程控制器的结构和工作原理的基础上，针对三层三站电梯，使用西门子S7-200PLC和仿真软件设计了电梯的运行控制监控系统。电梯的输入信号有3个轿内指令、厅外上、下召唤信号、用3个行程开关来代替电梯的位置信号。输出信号有上行和下行、位置指示灯和轿厢内指令信号指示灯。控制系统可以完成信号的登记和消除、自动选层和定向自动控制功能。阐述了PLC的优点及特点，重点分析了电梯的硬件设计和软件设计，研究并提出了基于PLC电梯控制系统设计的实现方案，最后对本论文的研究内容进行了总结与展望。关键词：电梯S7-200PLC梯形图AbstractAbstractAbstractAbstractWiththedevelopmentofmoderncities,anincreasingnumberofhigh-risebuilding,elevatorbecomeanindispensablemeansoftransportofdailylife.Thequalityoftheliftperformanceoftheimpactonpeople'slivesbecomingmoreandmoreobvious,itmuststrivetoimprovetheperformanceofelevatorsystems,andensuretheoperationoftheliftissafe,reliableandenergyefficient.Thetraditionalelevatorcontrolsystemuseslogicoftherelaytocontrolcircuit,thiskindofcontrolseasilytobecrash,maintainsinconveniently,themovementlifeisshort,andthatoccupyingalargeareaofspace，itbeingeliminatedgradually.Programmablecontrollerwithhighreliability,powerfulfeatureshasbecomethecoreofmicrocomputercontrolsystemofelevator.Basedontheelaborationoftheelevatorstructureandstructureandworkingprincipleofprogrammingcontroller,accordingtothethreelayerthreeCreator,theelevatorcontrolsystemdesignusingSiemensS7-200PLC.Theinputsignalofthe3elevatorcarinstruction,hall,appositionsignalcallsignal,withthreetravelswitchesinsteadoftheelevator.Theoutputsignalhastheuplinkanddownlink,positionindicatorlightsandcarlamp.Thecontrolsystemcancompletethesignalregistrationandeliminateautomaticlayerselectionanddirectionalautomaticcontrolfunction.IthaselaboratedtheadvantagesandcharacteristicsofPLC,analyzesthehardwaredesignandsoftwaredesignoftheelevator,andputsforwardthedesignschemebasedonPLCelevatorcontrolsystem,finallytheresearchcontentsofthisthesisaresummarizedandprospects.Keywords:elevatorS7-200PLCcontrolsystem目录绪论目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc1545"摘要PA