可编程控制器在电梯上的应用和发展外文文献及翻译大学论文.docx

可编程控制器在电梯上的应用和发展外文文献及翻译大学论文.docx

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可编程控制器在电梯上的应用和发展外文文献及翻译大学论文

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Applicationanddevelopmentofprogrammablecontrollerinelevator

Alongwiththedevelopmentoftheages,thetechniquethatisnowadaysisalsograduallyperfect,thecompetitionplaysmorestrong;theoperationthatlistdependstheartificialhasalreadycan'tsatisfiedwiththecurrentmanufacturingindustryforeground,alsocan'tguaranteetherequestofthehigherquantityandhighnewtheimageofthetechniquebusinessenterprise.

Thepeopleseeinproducepractice,automatebroughtthetremensduosconvenienceandtheproductquantitiesforpeopleupofassurance,alsoeasedthepersonnel'slaborstrength,reducetheestablishmentonthepersonnel,Thetargetcontrolofthehardrealizationinmanycomplicatedproductionlines,wholeandexcellentturn,thebestdecisionetc.,welltrainedoperationwork,technicalpersonelorexpert,governorbutcanjudgeandoperateeasily,canacquirethesatisfiedresult.Theresearchtargetoftheartificialintelligencemakesuseofthecalculatorexactlytocarryout,imitatetheseintelligencesbehavior,moderatingtheworkthroughpersonsprainandcalculators,withthemodethatperson'smachinecombine,forresolvetheverycomplicatedproblemtolookforthebestpath

WecomeinsightofthecontrolThailinksaftertheelectricappliancesinvarioussituation,thatisalreadythethattimegenerationpast,nowofafteruseinthemoldaperyhapssimpleequipmentsofgrass-rootscontrolthattheelectricappliancescandoforthelowlevelonly;AndthePLCemergencealsobecametheepoch-makingtopic,addingthevividsoftwarecontrolthroughaveryandstablehardware,makingtheautomationbeadfortubenewhightide.

ThePLCbiggestcharacteristicsliein:

Theelectricalengineeringteacheralreadynolongerelectrichardwareuptoomanycalculationsofcost,aslongasordertheimportationthatthebuttonswitchortheimportationofthesensorsordertolinkthePLCupcansolveproblem,passtooutputtoordertheconjunctioncontactmachineorcontrolthestartequipmentsofthebigpoweraftertheelectrecappliances,buttheexportationequipmentsdirectconjunctionofthesmallpowercan.

PLCinternalcontainmenthavetheCPUoftheCPU,andtaketohaveanI/Oforexpandofexteriortoconnectapeople'saddressandsavingmachinethreebigpiecestoconstitute,CPUcoreisfromanormanyistiredtoaddthemachinetoconstitute,mathematicsthattheyhavethelogicoperationability,andcanreadtheproceduresavethecontentsofthemachinetodrivethehomologoussavingmachineandI/Ostoconnectafterpassthecalculation;TheI/Oaddinnerpartistiredtheinputandoutputsystemofthemachineandexteriorlink,anddeposittherelateddataintotheproceduresavingmachineordatasavingmachine;Thesavingmachinecandeposit

thedatathattheI/Oinputinthesavingmachine,andinworkadjustingtobecometiredtoaddthemachineand|10stoconnect,savingmachineseparatelysavingmachineRAMoftheproceduresavingmachineROManddates,theROMcandodepositofthedatapermanenceinthesavingmachine,butRAMonlyfortheCPUcomputesthetemporarycalculationusageofhourofbufferspace.

ThePLCanti-interferenceisveryandexcellent,ourrootneednotconcernitsservicelifeandtheworksituationbad,theseallproblemshavealreadynolongerbecomethetopicthatwefail,butstaytoourisaconcerntocometointernalesouncesofmakeuseofthePLCtostrengthenthecontrolabilityoftheequipmentsforus,makeourequipmentsmoregentle.

PLClanguageisnotweimagineofeditcollectedmaterialsthelanguageorlanguageofCstocannyonweavingthedistance,butthetrapezoiddiagramthattheadoptionisoriginalaftertheelectricappliancestocontrol,maketheelectricallentinheringteacherwhileweavingtowritetheprocedureveryeasycomprehendedthePLClanguage,andalotofnonelectricityprofessionalalsoveryquicklyknowandgodeepintotothePLC.

IsPLConeoftheadvantageaboveandonly,thisisalsoonepartthatthepeoplecomprehendmoreandeasily,inalotofequipments,thepeoplehavealreadynolongerhopedtoseetoomanycontrolbuttons,theydamagenotonlyandeasilyandproducetheartificialerroreasiest,smallisnotamainerrorperhapsyoucanstillaccept;Butleadevenisafatalerrorgreatlyiswhatwecan'tistolerantof.Newtechniquealwaysforbringingmoresafeandconvenientoperationforus,makewealotofproblemsforfaceonsweepbutlight,doyouunderstandtheHMI?

SaystheHMIhereyoubasicallynotclearwhatitis,alsohavenointerestunderstanding,changeoneinsidetextexplainsitintothetouchtoholdormanmachineinterfaceyouknew,itcombineswithtilePLCtoourlargerspace.

HMItilecontrolnotonlyisreducedtilecontrolpressbutton,increasethevividofthecontrol,moremainofitiscansequenceof,andatcanthechangedatainputtooutputthefeedbackwithdata,controlinthetemperaturecurveofimitatebutalsocankeepthemanifestationofviewtocomeout.Andcanwritethefunctionhelpprocedurethroughaplaittoprovidethehelpofvariouswhatliesinone'spower,theonewhomakeoperatereducestheotioseerror.ContentlytheHMIfactoryisalsomoreandmore,thefunctionisalsomoreandmorestrong,thepriceisalsomoreandmorelow,thenoodlesoftheusagearewidemoreandmore.TheHMIforegroundcansaythatthinktobegoodvery.

Atalotofsituations,thelistisasmoothlovemendthatcan'tguaranteetheequipmentsbythecontroloftilesinglemachine,butpasstheinformationexchangesoftheequipmentsandequipmentstoattaintheresultthatwewarmForexampleforpackandtheexaminationoftheempressworkpreface,wewillarrivewrappinginformationfeedbacktoexaminetheplace,andexaminetheinformationoftheplacetoalsowantthefeedbacktopacking.Passtheinformationsharethustomakeboththechainconnect,becomingatotalbody,thematchofyourthatthusmakeismoreclose,ateachotherattaintoreflecttheresultthatmutuallyflick.

ThePLCcon-despondencehasaheadcomemorebodynowitswllue,atthePLCandcorrespondencebetweenPLCs,canpassthecommunicationoftheinformationandtileshareofthedatestoguaranteethatoftheequipmentsmoderatesmutually,theresultthatarrivealreadytorepairwitheachother.DataconversiontheadoptionRS232betweenPLCconnecttocometothetransmissiondata,buttheRS232pickupapeopleandcanguarantee10metersonlyofdeliverthedistance,ifinthedistanceof1000meterswecanpasstheRS485tocarryonthecorrespondence,thelongerdistancecanpasstheMODELonlytocarryondeliver.

ThePLCdatatransmissionisjusttobecalledaformaltoitinapieceofandcontinuousaddressthatthedataoftheinnerpartdeliverstheotherparty,we,thePLCoftheotherplaypassestoreaddatainthewatchtocarryontheoperation.Ifthedatathatdatainthewatchisatoestablishgenerally,thatisjustthegeneraldatatransmission,forexampletodayofoilpricerise,Iwanttodeliverthepriceoftheoil

pricetolosetheoilallyonboard,thatistheshareofthedata;ButtakedatainthewatchforaninstructionprocedurethatcontrolsthePLC,thathadthedifficultyverymuch,forexampleyouhavetocontrolonepedestalrobottopresstheactionworkthatyouimagine,youwilldrawupforittheformthataprocedurecombinewiththedatasendsouttopassby.

Theformthaiinformationtransportcontainsinglework,thehalfaworkandthedifferenceofaworkers.Themeaningofthesingleworkalsoistosayboth,acansendoutonly,butacanreceiveonly,forexampleaspyhecanreceivethedesignationofthesuperioronly,butcan'tgivethesuperiorreply;Aworkofhalfisalso2andcansendoutsimilartoacceptthedata,butcan'tsendoutandacceptatthesametime,forexamplewhenyoumakeaphonecallistocan'tanswerthephone,theotherpartyalso;Butwholepairworksisbothcansendoutandacceptthedata,andcansendoutandacceptatthesametime.BeliketheInternetisatypicalexample.

Theprocessthatinformationtransportalsohassynchronousanddifferentstepcent:

Thedatalineandtheclocklinesaresynchronouswhensynchronousmeaninglieinsendingoutthedata.isalsothedatasignalandtheclocksignalstobecarryonbytheCPUtosendoutatthesametime,thisneedstoallwantthespecializedclocksignaleachothertocarryonthetransmissionandconnecttosend,andisconstrained,

thecharacteristicsofthiskindofmethodliesinitsspeedveryquick,butcorrespondworktimeoftakeuptheCPUandalsowanttobelongoppositely,atthesametimethetechniquedifficultyalsoverybig.Itsrequestliesiscannothaveanerrormarginsinadarnsdeliver,otherwisethewholepieceaccordingtocomparetheoccurrencemistake,thisonthehardwareisabiggerdifficulty.Appliedmoreandmoreextensiveinsomeappropriativeequipmenses,beliketheappropriativemedicaltreatmentequipments,thenumericalsignalequipments...etc.,incompare

Andthedifferentstepisanapplicationtilemostextensive,thisreceivebenefitinitoftechniquedifficultyisoppositeandwanttobesmall,atthesametimenotneedtopreparethespecializedclocksignal,itscharacteristicstoliein,itsdataispartition,thelong-lostsendoutandaccept,betheCPUistoobusyoftimecangrindtoastopsextowork,alsoreducedthedifficultyonthehardware,thedatathrowtoloseatthesametimeoppositewanttobelittle,wecanpasstheexaminationofthedatatoobservewhetherthedatathatwesendouthasthemistakeornot,bel