外文翻译--可编程控制器技术.doc

英文原文PLCTECHNIQUEDISCUSSIONANDFUTUREDEVELOPMENTALONGWITHTHEDEVELOPMENTOFTHEAGES,THETECHNIQUETHATISNOWADAYSISALSOGRADUALLYPERFECT,THECOMPETITIONPLAYSMORESTRONG；THEOPERATIONTHATLISTDEPENDSTHEARTIFICIALHASALREADYCANTSATISFIEDWITHTHECURRENTMANUFACTURINGINDUSTRYFOREGROUND,ALSOCANTGUARANTEETHEREQUESTOFTHEHIGHERQUANTITYANDHIGHNEWTHEIMAGEOFTHETECHNIQUEBUSINESSENTERPRISETHEPEOPLESEEINPRODUCEPRACTICE,AUTOMATEBROUGHTTHETREMENDOUSCONVENIENCEANDTHEPRODUCTQUANTITIESFORPEOPLEUPOFASSURANCE,ALSOEASEDTHEPERSONNELSLABORSTRENGTH,REDUCETHEESTABLISHMENTONTHEPERSONNELTHETARGETCONTROLOFTHEHARDREALIZATIONINMANYCOMPLICATEDPRODUCTIONLINES,WHOLEANDEXCELLENTTURN,THEBESTDECISIONETC,WELLTRAINEDOPERATIONWORK,TECHNICALPERSONNELOREXPERT,GOVERNORBUTCANJUDGEANDOPERATEEASILY,CANACQUIRETHESATISFIEDRESULTTHERESEARCHTARGETOFTHEARTIFICIALINTELLIGENCEMAKESUSEOFTHECALCULATOREXACTLYTOCARRYOUT,IMITATETHESEINTELLIGENCESBEHAVIOR,MODERATINGTHEWORKTHROUGHPERSONSBRAINANDCALCULATORS,WITHTHEMODETHATPERSONSMACHINECOMBINE,FORRESOLVETHEVERYCOMPLICATEDPROBLEMTOLOOKFORTHEBESTPATHWECOMEINSIGHTOFTHECONTROLTHATLINKSAFTERTHEELECTRICAPPLIANCESINVARIOUSSITUATION,THATISALREADYTHETHATTIMEGENERATIONPAST,NOWOFAFTERUSEINTHEMOLDAPERHAPSSIMPLEEQUIPMENTSOFGRASSROOTSCONTROLTHATTHEELECTRICAPPLIANCESCANDOFORTHELOWLEVELONLY；ANDTHEPLCEMERGENCEALSOBECAMETHEEPOCHMAKINGTOPIC,ADDINGTHEVIVIDSOFTWARECONTROLTHROUGHAVERYANDSTABLEHARDWARE,MAKINGTHEAUTOMATIONHEADFORTHENEWHIGHTIDETHEPLCBIGGESTCHARACTERISTICSLIEINTHEELECTRICALENGINEERINGTEACHERALREADYNOLONGERELECTRICHARDWAREUPTOOMANYCALCULATIONSOFCOST,ASLONGASORDERTHEIMPORTATIONTHATTHEBUTTONSWITCHORTHEIMPORTATIONOFTHESENSORSORDERTOLINKTHEPLCUPCANSOLVEPROBLEM,PASSTOOUTPUTTOORDERTHECONJUNCTIONCONTACTMACHINEORCONTROLTHESTARTEQUIPMENTSOFTHEBIGPOWERAFTERTHEELECTRICAPPLIANCES,BUTTHEEXPORTATIONEQUIPMENTSDIRECTCONJUNCTIONOFTHESMALLPOWERCANPLCINTERNALCONTAINMENTHAVETHECPUOFTHECPU,ANDTAKETOHAVEANI/OFOREXPANDOFEXTERIORTOCONNECTAPEOPLESADDRESSANDSAVINGMACHINETHREEBIGPIECESTOCONSTITUTE,CPUCOREISFROMANORMANYISTIREDTOADDTHEMACHINETOCONSTITUTE,MATHEMATICSTHATTHEYHAVETHELOGICOPERATIONABILITY,ANDCANREADTHEPROCEDURESAVETHECONTENTSOFTHEMACHINETODRIVETHEHOMOLOGOUSSAVINGMACHINEANDI/OSTOCONNECTAFTERPASSTHECALCULATION；THEI/OADDINNERPARTISTIREDTHEINPUTANDOUTPUTSYSTEMOFTHEMACHINEANDEXTERIORLINK,ANDDEPOSITTHERELATEDDATAINTOTHEPROCEDURESAVINGMACHINEORDATASAVINGMACHINE；THESAVINGMACHINECANDEPOSITTHEDATATHATTHEI/OINPUTINTHESAVINGMACHINE,ANDINWORKADJUSTINGTOBECOMETIREDTOADDTHEMACHINEANDI/OSTOCONNECT,SAVINGMACHINESEPARATELYSAVINGMACHINERAMOFTHEPROCEDURESAVINGMACHINEROMANDDATES,THEROMCANDODEPOSITOFTHEDATAPERMANENCEINTHESAVINGMACHINE,BUTRAMONLYFORTHECPUCOMPUTESTHETEMPORARYCALCULATIONUSAGEOFHOUROFBUFFERSPACETHEPLCANTIINTERFERENCEISVERYANDEXCELLENT,OURROOTNEEDNOTCONCERNITSSERVICELIFEANDTHEWORKSITUATIONBAD,THESEALLPROBLEMSHAVEALREADYNOLONGERBECOMETHETOPICTHATWEFAIL,BUTSTAYTOOURISACONCERNTOCOMETOINTERNALRESOURCESOFMAKEUSEOFTHEPLCTOSTRENGTHENTHECONTROLABILITYOFTHEEQUIPMENTSFORUS,MAKEOUREQUIPMENTSMOREGENTLEPLCLANGUAGEISNOTWEIMAGINEOFEDITCOLLECTEDMATERIALSTHELANGUAGEORLANGUAGEOFCSTOCARRYONWEAVINGTHEDISTANCE,BUTTHETRAPEZOIDDIAGRAMTHATTHEADOPTIONISORIGINALAFTERTHEELECTRICAPPLIANCESTOCONTROL,MAKETHEELECTRICALENGINEERINGTEACHERWHILEWEAVINGTOWRITETHEPROCEDUREVERYEASYCOMPREHENDEDTHEPLCLANGUAGE,ANDALOTOFNONELECTRICITYPROFESSIONALALSOVERYQUICKLYKNOWANDGODEEPINTOTOTHEPLCISPLCONEOFTHEADVANTAGEABOVEANDONLY,THISISALSOONEPARTTHATTHEPEOPLECOMPREHENDMOREANDEASILY,INALOTOFEQUIPMENTS,THEPEOPLEHAVEALREADYNOLONGERHOPEDTOSEETOOMANYCONTROLBUTTONS,THEYDAMAGENOTONLYANDEASILYANDPRODUCETHEARTIFICIALERROREASIEST,SMALLISNOTAMAINERRORPERHAPSYOUCANSTILLACCEPT；BUTLEADEVENISAFATALERRORGREATLYISWHATWECANTISTOLERANTOFNEWTECHNIQUEALWAYSFORBRINGINGMORESAFEANDCONVENIENTOPERATIONFORUS,MAKEWEALOTOFPROBLEMSFORFACEONSWEEPBUTLIGHT,DOYOUUNDERSTANDTHEHMISAYSTHEHMIHEREYOUBASICALLYNOTCLEARWHATITIS,ALSOHAVENOINTERESTUNDERSTANDING,CHANGEONEINSIDETEXTEXPLAINSITINTOTHETOUCHTOHOLDORMANMACHINEINTERFACEYOUKNEW,ANDITCOMBINESWITHTHEPLCTOOURLARGERSPACEHMITHECONTROLNOTONLYISREDUCEDTHECONTROLPRESSBUTTON,INCREASETHEVIVIDOFTHECONTROL,MOREMAINOFITISCANSEQUENCEOF,ANDATCANTHECHANGEDATAINPUTTOOUTPUTTHEFEEDBACKWITHDATA,CONTROLINTHETEMPERATURECURVEOFIMITATEBUTALSOCANKEEPTHEMANIFESTATIONOFVIEWTOCOMEOUTANDCANWRITETHEFUNCTIONHELPPROCEDURETHROUGHAPLAITTOPROVIDETHEHELPOFVARIOUSWHATLIESINONESPOWER,THEONEWHOMAKEOPERATEREDUCESTHEOTIOSEERRORCURRENTLYTHEHMIFACTORYISALSOMOREANDMORE,THEFUNCTIONISALSOMOREANDMORESTRONG,THEPRICEISALSOMOREANDMORELOW,ANDTHENOODLESOFTHEUSAGEAREWIDEMOREANDMORETHEHMIFOREGROUNDCANSAYTHATTHINKTOBEGOODVERYATALOTOFSITUATIONS,THELISTISASMOOTHMOVEMENTTHATCANTGUARANTEETHEEQUIPMENTSBYTHECONTROLOFTHESINGLEMACHINE,BUTPASSTHEINFORMATIONEXCHANGESOFTHEEQUIPMENTSANDEQUIPMENTSTOATTAINTHERESULTTHATWEWANTFOREXAMPLEFOREPACKANDTHEEXAMINATIONOFTHEEMPRESSWORKPREFACE,WEWILLARRIVEWRAPPINGINFORMATIONFEEDBACKTOEXAMINETHEPLACE,ANDEXAMINETHEINFORMATIONOFTHEPLACETOALSOWANTTHEFEEDBACKTOPACKINGPASSTHEINFORMATIONSHARETHUSTOMAKEBOTHTHECHAINCONNECT,BECOMINGATOTALBODY,THEMATCHOFYOURTHATTHUSMAKEISMORECLOSE,ATEACHOTHERATTAINTOREFLECTTHERESULTTHATMUTUALLYFLICKTHEPLCCORRESPONDENCEHASALREADYCOMEMOREBODYNOWITSVALUE,ATTHEPLCANDCORRESPONDENCEBETWEENPLCS,CANPASSTHECOMMUNICATIONOFTHEINFORMATIONANDTHESHAREOFTHEDATESTOGUARANTEETHATOFTHEEQUIPMENTSMODERATESMUTUALLY,THERESULTTHATARRIVEALREADYTOREPAIRWITHEACHOTHERDATACONVERSIONTHEADOPTIONRS232BETWEENPLCCONNECTTOCOMETOTHETRANSMISSIONDATA,BUTTHERS232PICKUPAPEOPLEANDCANGUARANTEE10METERSONLYOFDELIVERTHEDISTANCE,IFINTHEDISTANCEOF1000METERSWECANPASSTHERS485TOCARRYONTHECORRESPONDENCE,THELONGERDISTANCECANPASSTHEMODELONLYTOCARRYONDELIVERTHEPLCDATATRANSMISSIONISJUSTTOBECALLEDAFORMTOITINAPIECEOFANDCONTINUOUSADDRESSTHATTHEDATAOFTHEINNERPARTDELIVERSTHEOTHERPARTY,WE,THEPLCOFTHEOTHERPARTYPASSESTOREADDATAINTHEWATCHTOCARRYONTHEOPERATIONIFTHEDATATHATDATAINTHEWATCHISATOESTABLISHGENERALLY,THATISJUSTTHEGENERALDATATRANSMISSION,FOREXAMPLETODAYOFOILPRICERISE,IWANTTODELIVERTHEPRICEOFTHEOILPRICETOLOSETHEOILALLYONBOARD,THATISTHESHAREOFTHEDATA；BUTTAKEDATAINTHEWATCHFORANINSTRUCTIONPROCEDURETHATCONTROLSTHEPLC,THATHADTHEDIFFICULTYVERYMUCH,FOREXAMPLEYOUHAVETOCONTROLONEPEDESTALROBOTTOPRESSTHEACTIONWORKTHATYOUIMAGINE,YOUWILLDRAWUPFORITTHEFORMTHATAPROCEDURECOMBINEWITHTHEDATASENDSOUTTOPASSBYTHEFORMTHATINFORMATIONTRANSPORTCONTAINSINGLEWORK,THEHALFAWORKANDTHEDIFFERENCEOFAWORKERSTHEMEANINGOFTHESINGLEWORKALSOISTOSAYBOTH,ACANSENDOUTONLY,BUTACANRECEIVEONLY,FOREXAMPLEASPYHECANRECEIVETHEDESIGNATIONOFTHESUPERIORONLY,BUTCANTGIVETHESUPERIORREPLY；AWORKOFHALFISALSO2ANDCANSENDOUTSIMILARTOACCEPTTHEDATA,BUTCANTSENDOUTANDACCEPTATTHESAMETIME,FOREXAMPLEWHENYOUMAKEAPHONECALLISTOCANTANSWERTHEPHONE,THEOTHERPARTYALSO；BUTWHOLEPAIRWORKSISBOTHCANSENDOUTANDACCEPTTHEDATA,ANDCANSENDOUTANDACCEPTATTHESAMETIMEBELIKETHEINTERNETISATYPICALEXAMPLETHEPROCESSTHATINFORMATIONTRANSPORTALSOHASSYNCHRONOUSANDDIFFERENTSTEPCENTTHEDATALINEANDTHECLOCKLINESARESYNCHRONOUSWHENSYNCHRONOUSMEANINGLIEINSENDINGOUTTHEDATA,ISALSOTHEDATASIGNALANDTHECLOCKSIGNALSTOBECARRYONBYTHECPUTOSENDOUTATTHESAMETIME,THISNEEDSTOALLWANTTHESPECIALIZEDCLOCKSIGNALEACHOTHERTOCARRYONTHETRANSMISSIONANDCONNECTTOSEND,ANDISCONSTRAINED,THECHARACTERISTICSOFTHISKINDOFMETHODLIESINITSSPEEDVERYQUICK,BUTCORRESPONDWORKTIMEOFTAKEUPTHECPUANDALSOWANTTOBELONGOPPOSITELY,ATTHESAMETIMETHETECHNIQUEDIFFICULTYALSOVERYBIGITSREQUESTLIESINCANTINGHAVEANERRORMARGINSINADATESDELIVER,OTHERWISETHEWHOLEPIECEACCORDINGTOCOMPARETHEOCCURRENCEMISTAKE,THISONTHEHARDWAREISABIGGERDIFFICULTYAPPLIEDMOREANDMOREEXTENSIVEINSOMEAPPROPRIATIVEEQUIPMENTS,BELIKETHEAPPROPRIATIVEMEDICALTREATMENTEQUIPMENTS,THENUMERICALSIGNALEQUIPMENTSETC,INCOMPARETHEONEDATADELIVER,ITSRESULTISVERYGOODANDTHEDIFFERENTSTEPISANAPPLICATIONTHEMOSTEXTENSIVE,THISRECEIVEBENEFITINITOFTECHNIQUEDIFFICULTYISOPPOSITEANDWANTTOBESMALL,ATTHESAMETIMENOTNEEDTOPREPARETHESPECIALIZEDCLOCKSIGNAL,ITSCHARACTERISTICSTOLIEIN,ITSDATAISPARTITION,THELONGLOSTSENDOUTANDACCEPT,BETHECPUISTOOBUSYOFTIMECANGRINDTOASTOPSEXTOWORK,ALSOREDUCEDTHEDIFFICULTYONTHEHARDWARE,THEDATATHROWTOLOSEATTHESAMETIMEOPPOSITEWANTTOBELITTLE,WECANPASSTHEEXAMINATIONOFTHEDATATOOBSERVEWHETHERTHEDATATHATWESENDOUTHASTHEMISTAKEORNOT,BELIKESTRANGEACCIDENTALLYTHEMETHOD,TIREDADDITIONANDEIGHTEFFICACIESMETHODETC,CANUSETOHELPSWHETHERTHEDATATHATWEEXAMINETOSENDOUTHAVEORNOTTHEMISTAKEOCCURRENCE,PASSTHEFEEDBACKTOCARRYONTHEDISCRIMINATORALINEOFTRANSMISSIONOFTHEINFORMATIONCONTAINSASTRINGOFANDCOMBINETHECENTOFTHEUSUALPLCIS8MACHINES,CERTAINLYALSOHAVING16MACHINESWECANBEANATTHETIMEOFSENDINGOUTTHEDATAASENDOUTTOTHEOTHERPARTY,ALSOCANBE88SENDOUTTHEDATATOTHEOTHERPARTY,ANAND8DIFFERENTIATIONSAREALSOTHEASTHATWESAYTOSENDOUTTHEDATAANDCOMBINESENDSOUTTHEDATAASPEEDISMOREANDSLOWLY,BUTASLONGAS2ORTHREELINESCANSOLVEPROBLEM,ANDCANUSETHETELEPHONELINETOCARRYONTHELONGRANGECONTROLBUTCOMBINETHEOCULARTRANSMISSIONSPEEDISVERYQUICKOF,ITISASTRINGOFOCULAROF25600,OCCUPYTHEADVANTAGEINTHESHORTDISTANCE,THEINVIEWOFTHEFACTTTLELECTRICITYISEVEN,BEINGLIMITEDBYTHESCOPEOFONEMETERGENERALLY,ITCOMBINEUNWELLUSEDFORTHEDATATRANSMISSIONOFTHELONGPULL,THUSTHECOSTISTOOEXPENSIVEUNDERALOTOFCIRCUMSTANCESWEARETOTALTOLIKETOADOPTTHESTRINGTOCOMBINETHECONVERSIONCHIPTOCARRYONDELIVER,UNDERTHISKINDOFCIRCUMSTANCENOTNEEDUSTOCARRYONTODEPOSITEDTHEMACHINETOESTABLISHTOOANDCOMPLICATEDLY,BUTCARRYONTHEDATAEXCHANGESTHROUGHTHEDATATRANSMISSIONINSTRUCTIONDIRECTLY,BUTISNOTAVERYVIABLEWAYINTHECORRESPONDENCE,BECAUSETHEPLCOFTHEOTHERPARTYMUSTHASBEENWAITFORYOURDATAEXPORTATIONATTHETIMEOFSENDINGOUTTHEDATA,ITCANTDOOTHERWORKSWHENYOUAREREADINGTHEBOOK,YOUHEARSOMEONEKNOCKONDOOR,YOUSTOPTOSTARTUPOFAFFAIR,OPENTHEDOORANDCOMBINETOCONTINUEWITHTHEONEWHOKNOCKONDOORADIALOGUE,THETELEPHONEOFTHISTIMERANG,YOUSIGNALHINTTOCONNECTATELEPHONE,AFTERCONNECTINGTHETELEPHONETHROUGH,RETURNOVERDOCOMETOGETHERKNOCKONDOORTOHAVEACONVERSATION,AFTERDIALOGUECOMPLETE,YOUCONTINUEAGAINTOSEEYOURBOOK,THISKINDOFCIRCUMSTANCEWEARECALLEDTHEINTERRUPTIONTOIT,ITHASTHEAUTHORITY,ALSOHAVINGSEXOFHAVETHEINITIATIVE,THEPLCHADSUCHFUNCTIONITSCHARACTERISTICSLIEINUSANDMAYMEETTHEURGENTLYABRUPTAFFAIRSINTHEOPERATIONPROCESSOFTHEEQUIPMENTS,WEWANTTOSTO