毕业设计英文翻译可编程控制器技术讨论与未来发展PLCtechniquediscussionandfuturedevelopment.docx
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毕业设计英文翻译可编程控制器技术讨论与未来发展PLCtechniquediscussionandfuturedevelopment
PLCtechniquediscussionandfuturedevelopment
Alongwiththedevelopmentoftheages,thetechniquethatisnowadaysisalsograduallyperfect,thecompetitionplaysmoremorestrong;theoperationthatlistdependstheartificialhasalreadycan'tsatisfiedwiththecurrentmanufacturingindustryforeground,alsocan'tguaranteetherequestofthehigherquantityandhighnewtheimageofthetechniquebusinessenterprise.
Thepeopleseeinproducepractice,automatebroughtthetremendousconvenienceandtheproductquantitiesforpeopleupofassurance,alsoeasedthepersonnel'slaborstrength,reducetheestablishmentonthepersonnel.Thetargetcontrolofthehardrealizationinmanycomplicatedproductionlines,wholeandexcellentturn,thebestdecisionetc.,well-trainedoperationwork,technicalpersonnelorexpert,governorbutcanjudgeandoperateeasily,canacquirethesatisfiedresult.Theresearchtargetoftheartificialintelligencemakesuseofthecalculatorexactlytocarryout,imitatetheseintelligencesbehavior,moderatingtheworkthroughperson'sbrainandcalculators,withthemodethatperson'smachinecombine,forresolvetheverycomplicatedproblemtolookforthebestpath
Wecomeinsightofthecontrolthatlinksaftertheelectricappliancesinvarioussituation,thatisalreadythethattimegenerationpast,nowofafteruseinthemoldaperhapssimpleequipmentsofgrass-rootscontrolthattheelectricappliancescandoforthelowlevelonly;AndthePLCemergencealsobecametheepoch-makingtopic,addingthevividsoftwarecontrolthroughaveryandstablehardware,makingtheautomationheadforthenewhightide.
ThePLCbiggestcharacteristicsliein:
Theelectricalengineeringteacheralreadynolongerelectrichardwareuptoomanycalculationsesofcost,aslongasordertheimportationthatthebuttonswitchortheimportationofthesensorsordertolinkthePLCupcansolveproblem,passtooutputtoordertheconjunctioncontactmachineorcontrolthestartequipmentsofthebigpoweraftertheelectricappliances,buttheexportationequipmentsdirectconjunctionofthesmallpowercan.
PLCinternalcontainmenthavetheCPUoftheCPU,andtaketohaveanI/Oforexpandofexteriortoconnectapeople'saddressandsavingmachinethreebigpiecestoconstitute,CPUcoreisfromanormanyistiredtoaddthemachinetoconstitute,mathematicsthattheyhavethelogicoperationability,andcanreadtheproceduresavethecontentsofthemachinetodrivethehomologoussavingmachineandI/Ostoconnectafterpassthecalculation;TheI/Oaddinnerpartistiredtheinputandoutputsystemofthemachineandexteriorlink,anddeposittherelateddataintotheproceduresavingmachineordatasavingmachine;ThesavingmachinecandepositthedatathattheI/Oinputinthesavingmachine,andinworkadjustingtobecometiredtoaddthemachineandI/Ostoconnect,savingmachineseparatelysavingmachineRAMoftheproceduresavingmachineROManddatas,theROMcancandodepositofthedatapermanenceinthesavingmachine,butRAMonlyfortheCPUcomputesthetemporarycalculationusageofhourofbufferspace.
ThePLCanti-interferenceisveryandexcellent,ourrootneednotconcernitsservicelifeandtheworksituationbad,theseallproblemshavealreadynolongerbecomethetopicthatwefail,butstaytoourisaconcerntocometointernalresourcesofmakeuseofthePLCtostrengthenthecontrolabilityoftheequipmentsforus,makeourequipmentsmoregentle.
PLClanguageisnotweimagineofeditcollectedmaterialsthelanguageorlanguageofCstocarryonweavingthedistance,butthetrapezoiddiagramthattheadoptionisoriginalaftertheelectricappliancestocontrol,maketheelectricalengineeringteacherwhileweavingtowritetheprocedureveryeasycomprehendedthePLClanguage,andalotofnon-electricityprofessionalalsoveryquicklyknowandgodeepintotothePLC.
IsPLConeoftheadvantageaboveandonly,thisisalsoonepartthatthepeoplecomprehendmoreandeasily,inalotofequipmentses,thepeoplehavealreadynolongerhopedtoseetoomanycontrolbuttons,theydamagenotonlyandeasilyandproducetheartificialerroreasiest,smallisnotamainerrorperhapsyoucanstillaccept;Butleadevenisafatalerrorgreatlyiswhatwecan'tistolerantof.Newtechniquealwaysforbringingmoresafeandconvenientoperationforus,makewealotofproblemsforfaceonsweepbutlight,doyouunderstandtheHMI?
SaystheHMIhereyoubasicallynotclearwhatitis,alsohavenointerestunderstanding,changeoneinsidetextexplainsitintothetouchtoholdorman-machineinterfaceyouknew,itcombineswiththePLCtoourlargerspace.
HMIthecontrolnotonlyonlyisreducedthecontrolpressbutton,increasethevividofthecontrol,moremainofitiscansequenceof,andatcanthechangedatainputtooutputthefeedbackwithdata,controlinthetemperaturecurveofimitatebutalsocankeepthemanifestationofviewtocomeout.Andcanwritethefunctionhelpprocedurethroughaplaittoprovidethehelpofvariouswhatliesinone'spower,theonewhomakeoperatereducestheotioseerror.CurrentlytheHMIfactoryisalsomoreandmore,thefunctionisalsomoreandmorestrong,thepriceisalsomoreandmorelow,thenoodlesoftheusagearewidemoreandmore.TheHMIforegroundcansaythatthink°tobegoodvery.
Atalotofsituations,thelistisisasmoothmovementthatcan'tguaranteetheequipmentsbythecontrolofthesinglemachine,butpasstheinformationexchangesoftheequipmentsandequipmentstoattaintheresultthatwewant.Forexampleforepackandtheexaminationoftheempressworkpreface,wewillarrivewrappinginformationfeedbacktoexaminetheplace,andexaminetheinformationoftheplacetoalsowantthefeedbacktopacking.Passtheinformationsharethustomakeboththechainconnect,becomingatotalbody,thematchofyourthatthusmakeismoreclose,ateachotherattaintoreflecttheresultthatmutuallyflick.
ThePLCcorrespondencehasalreadycomemoremorebodynowitsvalue,atthePLCandcorrespondencebetweenPLCs,canpassthecommunicationoftheinformationandtheshareofthedatastoguaranteethatoftheequipmentsmoderatesmutually,theresultthatarrivealreadytorepairwitheachother.DataconversiontheadoptionRS232betweenPLCconnecttocometothetransmissiondata,buttheRS232pickupapeopleandcanguarantee10metersonlyofdeliverthedistance,ifinthedistanceof1000meterswecanpasstheRS485tocarryonthecorrespondence,thelongerdistancecanpasstheMODELonlytocarryondeliver.
ThePLCdatatransmissionisjusttobecalledaformtoitinapieceofandcontinuousaddressthatthedataoftheinnerpartdeliverstheotherparty,we,thePLCoftheotherpartypassestoreaddatainthewatchtocarryontheoperation.Ifthedatathatdatainthewatchisatoestablishgenerally,thatisjustthegeneraldatatransmission,forexampletodayofoilpricerise,Iwanttodeliverthepriceoftheoilpricetolosetheoilallyonboard,thatistheshareofthedata;ButtakedatainthewatchforaninstructionprocedurethatcontrolsthePLC,thathadthedifficultyverymuch,forexampleyouhavetocontrolonepedestalrobottopresstheactionworkthatyouimagine,youwilldrawupforittheformthataprocedurecombinewiththedatasendsouttopassby.
Theformthatinformationtransportcontainsinglework,thehalfaworkandthedifferenceofaworkses.Themeaningofthesingleworkalsoistosayboth,acansendoutonly,butacanreceiveonly,forexampleaspyhecanreceivethedesignationofthesuperioronly,butcan'tgivethesuperiorreply;Aworkofhalfisalso2andcancansendoutsimilartoacceptthedata,butcan'tsendoutandacceptatthesametime,forexamplewhenyoumakeaphonecallistocan'tanswerthephone,theotherpartyalso;Butwholepairworksisbothcansendoutandacceptthedata,andcansendoutandacceptatthesametime.BeliketheInternetisatypicalexample.
Theprocessthatinformationtransportalsohassynchronousanddifferentstepcent:
Thedatalineandtheclocklinesaresynchronouswhensynchronousmeaninglieinsendingoutthedata,isalsothedatasignalandtheclocksignalstobecarryonbytheCPUtosendoutatthesametime,thisneedstoallwantthespecializedclocksignaleachothertocarryonthetransmissionandconnecttosend,andisconstrained,thecharacteristicsofthiskindofmethodliesinitsspeedveryquick,butcorrespondworktimeoftakeuptheCPUandalsowanttobelongoppositely,atthesametimethetechniquedifficultyalsoverybig.Itsrequestliesincan'tinghaveanerrormarginsinadatasdeliver,otherwisethewholepieceaccordingtocomparetheoccurrencemistake,thisonthehardwareisabiggerdifficulty.Appliedmoreandmoreextensiveinsomeappropriativeequipmentses,beliketheappropriativemedicaltreatmentequipments,thenumericalsignalequipments...etc.,incomparetheonedatadeliver,itsresultisverygood.
Andthedifferentstepisanapplicationthemostextensive,thisreceivebenefitinitoftechniquedifficultyisoppositeandwanttobesmall,atthesametimenotneedtopreparethespecializedclocksignal,itscharacteristicstoliein,itsdataispartition,thelong-lostsendoutandaccept,betheCPUistoobusyoftimecangrindtoastopsextowork,alsoreducedthedifficultyonthehardware,thedatathrowtoloseatthesametimeoppositewanttobelittle,wecanpasstheexaminationofthedatatoobservewhetherthedatathatwesendouthasthem