外文翻译可编程控制器技术讨论与未来发展.doc

南京工程学院毕业设计中英文翻译作者：学号：系部：自动化专业：自动化（数控）题目：可编程控制器技术讨论与未来发展指导者：评阅者：2006年06月南京1PLC:techniquediscussionandfuturedevelopmentWiththedevelopmentofthetimes,todaystechnologyhasgraduallyimproved,competitionintensified；Wecantlongerrelyonmanualoperationtomeetthecurrentprospectsforthemanufacturingsector,andalsocantguaranteeahigherqualityrequirementsandtheimageofhigh-techenterprises.Thepeopleseeinproducepractice,automatebroughtthetremendousconvenienceandtheproductquantitiesforpeopleupofassurance,alsoeasedthepersonnelslaborstrength,reducetheestablishmentonthepersonnel.Thetargetcontrolofthehardrealizationinmanycomplicatedproductionlines,wholeandexcellentturn,thebestdecisionetc.,well-trainedoperationwork,technicalpersonnelorexpert,governorbutcanjudgeandoperateeasily,canacquirethesatisfiedresult.Theresearchtargetoftheartificialintelligencemakesuseofthecalculatorexactlytocarryout,imitatetheseintelligencesbehavior,moderatingtheworkthroughpersonsbrainandcalculators,withthemodethatpersonsmachinecombine,forresolvetheverycomplicatedproblemtolookforthebestpath.Wecomeinsightofthecontrolthatlinksaftertheelectricappliancesinvarioussituation,thatisalreadythethattimegenerationpast,nowofafteruseinthemoldaperhapssimpleequipmentsofgrass-rootscontrolthattheelectricappliancescandoforthelowlevelonly；AndthePLCemergencealsobecametheepoch-makingtopic,addingthevividsoftwarecontrolthroughaveryandstablehardware,makingtheautomationheadforthenewhightide.ThePLCbiggestcharacteristicsliein:Theelectricalengineeringteacheralreadynolongerelectrichardwareuptoomanycalculationsesofcost,aslongasordertheimportationthatthebuttonswitchortheimportationofthesensorsordertolinkthePLCupcansolveproblem,passtooutputtoordertheconjunctioncontactmachineorcontrolthestartequipmentsofthebigpoweraftertheelectricappliances,butthe2exportationequipmentsdirectconjunctionofthesmallpowercan.PLCinternalcontainmenthavetheCPUoftheCPU,andtaketohaveanI/Oforexpandofexteriortoconnectapeoplesaddressandsavingmachinethreebigpiecestoconstitute,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.AboveisoneofthePLCsadvantageonly,thisisalsoonepartthatthepeoplecomprehendmoreandeasily,inalotofequipmentses,thepeople3havealreadynolongerhopedtoseetoomanycontrolbuttons,theydamagenotonlyandeasilyandproducetheartificialerroreasiest,smallisnotamainerrorperhapsyoucanstillaccept；Butleadevenisafatalerrorgreatlyiswhatwecantistolerantof.Newtechniquealwaysforbringingmoresafeandconvenientoperationforus,makewealotofproblemsforfaceonsweepbutlight,doyouunderstandtheHMI?SaystheHMIhereyoubasicallynotclearwhatitis,alsohavenointerestunderstanding,changeoneinsidetextexplainsitintothetouchtoholdorman-machineinterfaceyouknew,itcombineswiththePLCtoourlargerspace.HMIthecontrolnotonlyonlyisreducedthecontrolpressbutton,increasethevividofthecontrol,moremainofitiscansequenceof,andatcanthechangedatainputtooutputthefeedbackwithdata,controlinthetemperaturecurveofimitatebutalsocankeepthemanifestationofviewtocomeout.Andcanwritethefunctionhelpprocedurethroughaplaittoprovidethehelpofvariouswhatliesinonespower,theonewhomakeoperatereducestheotioseerror.CurrentlytheHMIfactoryisalsomoreandmore,thefunctionisalsomoreandmorestrong,thepriceisalsomoreandmorelow,thenoodlesoftheusagearewidemoreandmore.TheHMIforegroundcansaythatthinktobegoodvery.Atalotofsituations,thelistisisasmoothmovementthatcantguaranteetheequipmentsbythecontrolofthesinglemachine,butpasstheinformationexchangesoftheequipmentsandequipmentstoattaintheresultthatwewant.Forexampleforepackandtheexaminationoftheempressworkpreface,wewillarrivewrappinginformationfeedbacktoexaminetheplace,andexaminetheinformationoftheplacetoalsowantthefeedbacktopacking.Passtheinformationsharethustomakeboththechainconnect,becomingatotalbody,thematchofyourthatthusmakeismoreclose,ateachotherattaintoreflecttheresultthatmutuallyflick.ThePLCcorrespondencehasalreadycomemoremorebodynowitsvalue,