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外文翻译--PLC技术讨论和未来发展.doc

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外文翻译--PLC技术讨论和未来发展.doc

英文原文PLCTECHNIQUEDISCUSSIONANDFUTUREDEVELOPMENTALONGWITHTHEDEVELOPMENTOFTHEAGES,THETECHNIQUETHATISNOWADAYSISALSOGRADUALLYPERFECT,THECOMPETITIONPLAYSMOREMORESTRONG;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,SAVINGMACHINESEPARATELYSAVINGMACHINERAMOFTHEPROCEDURESAVINGMACHINEROMANDDATAS,THEROMCANCANDODEPOSITOFTHEDATAPERMANENCEINTHESAVINGMACHINE,BUTRAMONLYFORTHECPUCOMPUTESTHETEMPORARYCALCULATIONUSAGEOFHOUROFBUFFERSPACETHEPLCANTIINTERFERENCEISVERYANDEXCELLENT,OURROOTNEEDNOTCONCERNITSSERVICELIFEANDTHEWORKSITUATIONBAD,THESEALLPROBLEMSHAVEALREADYNOLONGERBECOMETHETOPICTHATWEFAIL,BUTSTAYTOOURISACONCERNTOCOMETOINTERNALRESOURCESOFMAKEUSEOFTHEPLCTOSTRENGTHENTHECONTROLABILITYOFTHEEQUIPMENTSFORUS,MAKEOUREQUIPMENTSMOREGENTLEPLCLANGUAGEISNOTWEIMAGINEOFEDITCOLLECTEDMATERIALSTHELANGUAGEORLANGUAGEOFCSTOCARRYONWEAVINGTHEDISTANCE,BUTTHETRAPEZOIDDIAGRAMTHATTHEADOPTIONISORIGINALAFTERTHEELECTRICAPPLIANCESTOCONTROL,MAKETHEELECTRICALENGINEERINGTEACHERWHILEWEAVINGTOWRITETHEPROCEDUREVERYEASYCOMPREHENDEDTHEPLCLANGUAGE,ANDALOTOFNONELECTRICITYPROFESSIONALALSOVERYQUICKLYKNOWANDGODEEPINTOTOTHEPLCISPLCONEOFTHEADVANTAGEABOVEANDONLY,THISISALSOONEPARTTHATTHEPEOPLECOMPREHENDMOREANDEASILY,INALOTOFEQUIPMENTS,THEPEOPLEHAVEALREADYNOLONGERHOPEDTOSEETOOMANYCONTROLBUTTONS,THEYDAMAGENOTONLYANDEASILYANDPRODUCETHEARTIFICIALERROREASIEST,SMALLISNOTAMAINERRORPERHAPSYOUCANSTILLACCEPT;BUTLEADEVENISAFATALERRORGREATLYISWHATWECANTISTOLERANTOFNEWTECHNIQUEALWAYSFORBRINGINGMORESAFEANDCONVENIENTOPERATIONFORUS,MAKEWEALOTOFPROBLEMSFORFACEONSWEEPBUTLIGHT,DOYOUUNDERSTANDTHEHMISAYSTHEHMIHEREYOUBASICALLYNOTCLEARWHATITIS,ALSOHAVENOINTERESTUNDERSTANDING,CHANGEONEINSIDETEXTEXPLAINSITINTOTHETOUCHTOHOLDORMANMACHINEINTERFACEYOUKNEW,ITCOMBINESWITHTHEPLCTOOURLARGERSPACEHMITHECONTROLNOTONLYONLYISREDUCEDTHECONTROLPRESSBUTTON,INCREASETHEVIVIDOFTHECONTROL,MOREMAINOFITISCANSEQUENCEOF,ANDATCANTHECHANGEDATAINPUTTOOUTPUTTHEFEEDBACKWITHDATA,CONTROLINTHETEMPERATURECURVEOFIMITATEBUTALSOCANKEEPTHEMANIFESTATIONOFVIEWTOCOMEOUTANDCANWRITETHEFUNCTIONHELPPROCEDURETHROUGHAPLAITTOPROVIDETHEHELPOFVARIOUSWHATLIESINONESPOWER,THEONEWHOMAKEOPERATEREDUCESTHEOTIOSEERRORCURRENTLYTHEHMIFACTORYISALSOMOREANDMORE,THEFUNCTIONISALSOMOREANDMORESTRONG,THEPRICEISALSOMOREANDMORELOW,THENOODLESOFTHEUSAGEAREWIDEMOREANDMORETHEHMIFOREGROUNDCANSAYTHATTHINKTOBEGOODVERYATALOTOFSITUATIONS,THELISTISISASMOOTHMOVEMENTTHATCANTGUARANTEETHEEQUIPMENTSBYTHECONTROLOFTHESINGLEMACHINE,BUTPASSTHEINFORMATIONEXCHANGESOFTHEEQUIPMENTSANDEQUIPMENTSTOATTAINTHERESULTTHATWEWANTFOREXAMPLEFOREPACKANDTHEEXAMINATIONOFTHEEMPRESSWORKPREFACE,WEWILLARRIVEWRAPPINGINFORMATIONFEEDBACKTOEXAMINETHEPLACE,ANDEXAMINETHEINFORMATIONOFTHEPLACETOALSOWANTTHEFEEDBACKTOPACKINGPASSTHEINFORMATIONSHARETHUSTOMAKEBOTHTHECHAINCONNECT,BECOMINGATOTALBODY,THEMATCHOFYOURTHATTHUSMAKEISMORECLOSE,ATEACHOTHERATTAINTOREFLECTTHERESULTTHATMUTUALLYFLICKTHEPLCCORRESPONDENCEHASALREADYCOMEMOREMOREBODYNOWITSVALUE,ATTHEPLCANDCORRESPONDENCEBETWEENPLC,CANPASSTHECOMMUNICATIONOFTHEINFORMATIONANDTHESHAREOFTHEDATASTOGUARANTEETHATOFTHEEQUIPMENTSMODERATESMUTUALLY,THERESULTTHATARRIVEALREADYTOREPAIRWITHEACHOTHERDATACONVERSIONTHEADOPTIONRS232BETWEENPLCCONNECTTOCOMETOTHETRANSMISSIONDATA,BUTTHERS232PICKUPAPEOPLEANDCANGUARANTEE10METERSONLYOFDELIVERTHEDISTANCE,IFINTHEDISTANCEOF1000METERSWECANPASSTHERS485TOCARRYONTHECORRESPONDENCE,THELONGERDISTANCECANPASSTHEMODELONLYTOCARRYONDELIVERTHEPLCDATATRANSMISSIONISJUSTTOBECALLEDAFORMTOITINAPIECEOFANDCONTINUOUSADDRESSTHATTHEDATAOFTHEINNERPARTDELIVERSTHEOTHERPARTY,WE,THEPLCOFTHEOTHERPARTYPASSESTOREADDATAINTHEWATCHTOCARRYONTHEOPERATIONIFTHEDATATHATDATAINTHEWATCHISATOESTABLISHGENERALLY,THATISJUSTTHEGENERALDATATRANSMISSION,FOREXAMPLETODAYOFOILPRICERISE,IWANTTODELIVERTHEPRICEOFTHEOILPRICETOLOSETHEOILALLYONBOARD,THATISTHESHAREOFTHEDATA;BUTTAKEDATAINTHEWATCHFORANINSTRUCTIONPROCEDURETHATCONTROLSTHEPLC,THATHADTHEDIFFICULTYVERYMUCH,FOREXAMPLEYOUHAVETOCONTROLONEPEDESTALROBOTTOPRESSTHEACTIONWORKTHATYOUIMAGINE,YOUWILLDRAWUPFORITTHEFORMTHATAPROCEDURECOMBINEWITHTHEDATASENDSOUTTOPASSBYTHEFORMTHATINFORMATIONTRANSPORTCONTAINSINGLEWORK,THEHALFAWORKANDTHEDIFFERENCEOFAWORKSTHEMEANINGOFTHESINGLEWORKALSOISTOSAYBOTH,ACANSENDOUTONLY,BUTACANRECEIVEONLY,FOREXAMPLEASPYHECANRECEIVETHEDESIGNATIONOFTHESUPERIORONLY,BUTCANTGIVETHESUPERIORREPLY;AWORKOFHALFISALSO2ANDCANCANSENDOUTSIMILARTOACCEPTTHEDATA,BUTCANTSENDOUTANDACCEPTATTHESAMETIME,FOREXAMPLEWHENYOUMAKEAPHONECALLISTOCANTANSWERTHEPHONE,THEOTHERPARTYALSO;BUTWHOLEPAIRWORKSISBOTHCANSENDOUTANDACCEPTTHEDATA,ANDCANSENDOUTANDACCEPTATTHESAMETIMEBELIKETHEINTERNETISATYPICALEXAMPLETHEPROCESSTHATINFORMATIONTRANSPORTALSOHASSYNCHRONOUSANDDIFFERENTSTEPCENTTHEDATALINEANDTHECLOCKLINESARESYNCHRONOUSWHENSYNCHRONOUSMEANINGLIEINSENDINGOUTTHEDATA,ISALSOTHEDATASIGNALANDTHECLOCKSIGNALSTOBECARRYONBYTHECPUTOSENDOUTATTHESAMETIME,THISNEEDSTOALLWANTTHESPECIALIZEDCLOCKSIGNALEACHOTHERTOCARRYONTHETRANSMISSIONANDCONNECTTOSEND,ANDISCONSTRAINED,THECHARACTERISTICSOFTHISKINDOFMETHODLIESINITSSPEEDVERYQUICK,BUTCORRESPONDWORKTIMEOFTAKEUPTHECPUANDALSOWANTTOBELONGOPPOSITELY,ATTHESAMETIMETHETECHNIQUEDIFFICULTYALSOVERYBIGITSREQUESTLIESINCANTHAVEANERRORMARGINSINADATADELIVER,OTHERWISETHEWHOLEPIECEACCORDINGTOCOMPARETHEOCCURRENCEMISTAKE,THISONTHEHARDWAREISABIGGERDIFFICULTYAPPLIEDMOREANDMOREEXTENSIVEINSOMEAPPROPRIATIVEEQUIPMENTS,BELIKETHEAPPROPRIATIVEMEDICALTREATMENTEQUIPMENTS,THENUMERICALSIGNALEQUIPMENTSETC,INCOMPARETHEONEDATADELIVER,ITSRESULTISVERYGOODANDTHEDIFFERENTSTEPISANAPPLICATIONTHEMOSTEXTENSIVE,THISRECEIVEBENEFITINITOFTECHNIQUEDIFFICULTYISOPPOSITEANDWANTTOBESMALL,ATTHESAMETIMENOTNEEDTOPREPARETHESPECIALIZEDCLOCKSIGNAL,ITSCHARACTERISTICSTOLIEIN,ITSDATAISPARTITION,THELONGLOSTSENDOUTANDACCEPT,BETHECPUISTOOBUSYOFTIMECANGRINDTOASTOPSEXTOWORK,ALSOREDUCEDTHEDIFFICULTYONTHEHARDWARE,THEDATATHROWTOLOSEATTHESAMETIMEOPPOSITEWANTTOBELITTLE,WECANPASSTHEEXAMINATIONOFTHEDATATOOBSERVEWHETHERTHEDATATHATWESENDOUTHASTHEMISTAKEORNOT,BELIKESTRANGEACCIDENTALLYTHEMETHOD,TIREDADDITIONANDEIGHTEFFICACIESMETHODETC,CANUSETOHELPSWHETHERTHEDATATHATWEEXAMINETOSENDOUTHAVEORNOTTHEMISTAKEOCCURRENCE,PASSTHEFEEDBACKTOCARRYONTHEDISCRIMINATORALINEOFTRANSMISSIONOFTHEINFORMATIONCONTAINASTRINGOFANDCOMBINETHECENTOFTHEUSUALPLCIS8MACHINES,CERTAINLYALSOHAVING16MACHINESWECANBEANATTHETIMEOFSENDINGOUTTHEDATAASENDOUTTOTHEOTHERPARTY,ALSOCANBE88SENDOUTTHEDATATOTHEOTHERPARTY,ANAND8DIFFERENTIATIONSAREALSOTHEASTHATWESAYTOSENDOUTTHEDATAANDCOMBINESENDSOUTTHEDATAASPEEDISMOREANDSLOWLY,BUTASLONGAS2ORTHREELINESCANSOLVEPROBLEM,ANDCANUSETHETELEPHONELINETOCARRYONTHELONGRANGECONTROLBUTCOMBINETHEOSCULARTRANSMISSIONSPEEDISVERYQUICKOF,ITISASTRINGOFOSCULAROF25600,OCCUPYTHEADVANTAGEINTHESHORTDISTANCE,THEINVIEWOFTHEFACTTTLELECTRICITYISEVEN,BEINGLIMITEDBYTHESCOPEOFONEMETERGENERALLY,ITCOMBINEUNWELLUSEDFORTHEDATATRANSMISSIONOFTHELONGPULL,THUSTHECOSTISTOOEXPENSIVEUNDERALOTOFCIRCUMSTANCESWEARETOTALTOLIKETOADOPTTHESTRINGTOCOMBINETHECONVERSIONCHIPTOCARRYONDELIVER,UNDERTHISKINDOFCIRCUMSTANCENOTNEEDUSTOCARRYONTODEPOSITEDTHEMACHINETOESTABLISHTOOANDCOMPLICATEDLY,BUTCARRYONTHEDATAEXCHANGESTHROUGHTHEDATATRANSMISSIONINSTRUCTIONDIRECTLY,BUTISNOTAVERYVIABLEWAYINTHECORRESPONDENCE,BECAUSETHEPLCOFTHEOTHERPARTYMUSTHASBEENWAITFORYOURDATAEXPORTATIONATTHETIMEOFSENDINGOUTTHEDATA,ITCANTDOOTHERWORKSWHENYOUAREREADINGTHEBOOK,YOUHEARSOMEONEKNOCKONDOOR,YOUSTOPTOSTARTUPOFAFFAIR,OPENTHEDOORANDCOMBINETOCONTINUEWITHTHEONEWHOKNOCKONDOORADIALOGUE,THETELEPHONEOFTHISTIMERANG,YOUSIGNALHINTTOCONNECTATELEPHONE,AFTERCONNECTINGTHETELEPHONETHROUGH,RETURNOVERDOCOMETOGETHERKNOCKONDOORTOHAVEACONVERSATION,AFTERDIALOGUECOMPLETE,YOUCONTINUEAGAINTOSEEYOURBOOK,THISKINDOFCIRCUMSTANCEWEARECALLEDTHEINTERRUPTIONTOIT,ITHASTHEAUTHORITY,ALSOHAVINGSEXOFHAVETHEINITIATIVE,THEPLCHADSUCHFUNCTIONITSCHARACTERISTICSLIEINUSANDMAYMEETTHEURGENTLYABRUPTAFFAIRSINTHEOPERATIONPROCESSOFTHEEQUIPMENTS,WEW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