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1、ThispaperleveltPLCapplicationinelevatortrendanddevelopmentPLCapplicationinthedevelopmenttrendoftheelevatorProgrammableLogicController(PLC)isacommoncontroldevicewhichusecomputertechnologyasacore,PLCgetsawiderangeofapplicationsinallwalksoflife.Intheelevatorindustry,PLC’srolehasbe
2、enfullyexpressed.ThispaperintroducesthePLC-controlledmodelofafive-storyelevator，includeit’scomposition,mainfunction,theI/OinterfacedistributionofthePLC,thePLC’sprogrammingmethodsandproceduresdesignoftheelevatorsystem.Withproceduresdesignoftheelevatorcontrolsystemcanachievetheel
3、evatordoor’sopeningandclosingcontrol,andtheelevater’sindicationunderthecall,movingfromtoptobottom,starting-up,delayclosed,Pinglayer,openingthedoor,makingsignalsinthequeue,closetotheescalatorandalarmingcontrolunderthemodeoftheelevator’soperationmode.Throughtheprocessofcompilings
4、oftware,hardwareconnectionandtheconjunctionofelevatormodelandthePLCcontrolsystem,whichmakestheelevatorcontrolsystemmodelintuitivereflectedinthecourseofoperationandrealizedtheelevater’sfunctionalcontrol.The21stcenturywilldevelopmultipurpose,full-featuredtowerbuilding,ultra-highs
5、peedelevatorcontinuetobecometheresearchdirection.Tractiontypesuper-fastelevatorresearchcontinuestosupercapacitymotor,highperformancebythemicroprocessor,dampingtechnology,newrollerguidebootsandsecurityclamp,permanentmagnetsynchronousmotor,elevatorcarairpressurereliefandnoisesupp
6、ressionsystemspropulsion.Usingthelinearmotordrivethereisalsoagreaterresearchspaceelevator.Futuresuper-fastelevatorintimacywillhaveincreasedsignificantly.ElevatoriWitheconomicdevelopment,theincreasingnumberofhigh-risebuildings,elevatorshavebecomeindispensableindailylifethevertic
7、altransport.Bettermeetuserrequirements,developmentofhighsecurity,highreliability,highefficiency,lowenergyconsumption,ridecomfortoftheelevator,theelevatoristhedomesticandforeignenterprisesandresearchinstitutionsthemainobjective.Elevatorcontrolsystemwhichwasdevelopedtoachievethes
8、eobjectives,themostimportantways.Therapiddevelopmentof
