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1、PLCapplicationinthedevelopmenttrendoftheelevatorProgrammableLogicController(PLC)isacommoncontroldevicewhichusecomputertechnologyasacore,PLCgetsawiderangeofapplicationsinallwalksoflife.Intheelevatorindustry,PLC’srolehasbeenfullyexpressed.Thispaperintroducest
2、hePLC-controlledmodelofafive-storyelevator，includeit’scomposition,mainfunction,theI/OinterfacedistributionofthePLC,thePLC’sprogrammingmethodsandproceduresdesignoftheelevatorsystem.Withproceduresdesignoftheelevatorcontrolsystemcanachievetheelevatordoor’sopen
3、ingandclosingcontrol,andtheelevater’sindicationunderthecall,movingfromtoptobottom,starting-up,delayclosed,Pinglayer,openingthedoor,makingsignalsinthequeue,closetotheescalatorandalarmingcontrolunderthemodeoftheelevator’soperationmode.Throughtheprocessofcompi
4、lingsoftware,hardwareconnectionandtheconjunctionofelevatormodelandthePLCcontrolsystem,whichmakestheelevatorcontrolsystemmodelintuitivereflectedinthecourseofoperationandrealizedtheelevater’sfunctionalcontrol.The21stcenturywilldevelopmultipurpose,full-feature
5、dtowerbuilding,ultra-highspeedelevatorcontinuetobecometheresearchdirection.Tractiontypesuper-fastelevatorresearchcontinuestosupercapacitymotor,highperformancebythemicroprocessor,dampingtechnology,newrollerguidebootsandsecurityclamp,permanentmagnetsynchronou
6、smotor,elevatorcarairpressurereliefandnoisesuppressionsystemspropulsion.Usingthelinearmotordrivethereisalsoagreaterresearchspaceelevator.Futuresuper-fastelevatorintimacywillhaveincreasedsignificantly.ElevatoriWitheconomicdevelopment,theincreasingnumberofhig
7、h-risebuildings,elevatorshavebecomeindispensableindailylifetheverticaltransport.Bettermeetuserrequirements,developmentof10highsecurity,highreliability,highefficiency,lowenergyconsumption,ridecomfortoftheelevator,theelevatoristhedomesticandforeignenterprises
8、andresearchinstitutionsthemainobjective.Elevatorcontrolsystemwhichwasdevelopedtoachievetheseobjectives,themostimportantways.Therapiddevelopmentofindustrialautomationtechnologyfortheelevatorcontrolsyste
