plc和dcs_中英文翻译外文翻译_论文

PLC和DCS_中英文翻译外文翻译_论文翻译原文DCSPRINCIPLEANDPLCFOUNDATIONDCSPRINCIPLEANDPLCFOUNDATIONDCSPRINCIPLEDISTRIBUTEDCONTROLSYSTEMDCSCARRIESONTHECENTRALISMMONITOR,THEOPERATION,THEMANAGEMENTANDTHEDISPERSERCONTROLWHICHISONEKINDOFNEWCONTROLTECHNOLOGYUSINGTHECOMPUTERTECHNOLOGYTOTHEPRODUCTIONPROCESSDCSISBASEONTHECOMPUTERTECHNOLOGY,THESIGNALPROCESSINGTECHNOLOGY,THESURVEYCONTROLTECHNOLOGY,THECORRESPONDENCENETWORKTECHNOLOGY,THECRTTECHNOLOGY,THEGRAPHICALDISPLAYTECHNOLOGYANDTHEMANMACHINECONNECTIONTECHNOLOGYMUTUALLYSEEPSTHEDEVELOPMENTTOPRODUCEDCSBOTHISDIFFERENTWITHTHEDISPERSIBLEMEASURINGAPPLIANCECONTROL,ANDDIFFERENTWITHYUJICHINESETYPECOMPUTERCONTROLSYSTEM,BUTOVERCOMESTHETWOFLAWTOCONCENTRATETHETWOSUPERIORITY,ITHASCONCENTRATEDFUNCTIONANDSOONSTEPLESSCONTROL,BATCHCONTROL,LOGICSEQUENTIALCONTROL,DATAACQUISITIONBASICCOMPONENTOFDCSTHELOGICSTRUCTUREOFTHESYSTEMNEEDSREALIZINGBYTHEPHYSICSSTRUCTUREWECANSUMUPTHEIRPHYSICSSTRUCTUREASTHESTRUCTUREOFTHETYPEOF“AGLEAMOFPASTTHREE“SIMPLY“FIRSTLINE“REFERSTOITSSKELETONCOMPUTERNETWORK,“THETHREE“MEANSTHATJOINTHREEKINDSOFDIFFERENTKINDSOFNODESINTHENETWORKFACEONTHESPOTI/OWHICHISACCUSEDOFTHECOURSESCENETOCONTROLANDSTANDFACINGTHEATTENBANTSOPERATORSSTATIONFACINGDCSSUPERVISETHEADMINISTRATIVESTAFFSENGINEERSTANDINGI/OCONTROLSTHESTATIONLIVEANONTHESPOTI/OISCONTROLLEDANDSTOODTOFINISHDEALINGWITHANDREALIZINGTHENETWORKNODEOFDIGITALCONTROLDDCDIRECTDIGITALCONTROLDIRECTLYTOONTHESPOTI/OOFCOURSE,THEREARETHREEMAINFUNCTIONS1,WHICHCARRIEDONDIGITIZATIONOFVARIOUSKINDSOFONTHESPOTCOURSEAMOUNTSUCHASTHEFLOW,PRESSURE,ANDTHEQUANTITYAFTERDIGITIZINGISSTOREDINTHEMEMORY,FORMONEKEEPTHESAMEWITHONTHESPOTCOURSEAMOUNTLY,CANONEONEISITVIDEOINREALTIMEACCORDINGTOACTUALRUNNINGSITUATIONWITHNEWERONTHESPOTCOURSEQUANTITYTOCHANGEINREALTIMING2,THEREALTIMEDATAGATHERINGOURSTATIONARESENTTOOPERATORSSTATION,STANDINGANDOTHERENGINEERSLIVETHROUGHTHENETWORKFOCONTROLTHESTATION,INORDERTOREALIZETHESUPERVISIONANDCONTROLOFTHEWHOLESYSTEM,ATTHESAMETIMEITISSTOODTHEMESSAGEISSUEDBYOPERATORSSTANDING,ENGINEERTHATCANALSORECEIVE,INORDERTOREALIZETHATESTABLISHESARTIFICIALCONTROLORPARAMETERTOOURSTATIONOFTHESCENE3,CALCULATIONANDCLOSINGRINGCONTROLLING,INORDERTOCONTROLETCINREALIZINGTHEPARTANDAUTOMATICALLYINGCONTROLINOURSTATION,RETURNCIRCUIT,ALGORITHMWHOSESOMECLASSICALALGORITHMGENERALLY,CANREMOVETHEATRICALMAKEUPANDCOSTUMENONSTANDARDALGORITHM,COMPLICATEDALGORITHMOPERATORSSTATIONTHEOPERATOROFDCSDEALSWITHALLFUNCTIONSOFMANMACHINEINTERFACEMMIMANMACHINEINTERFACERELATEDTOOPERATINGANDOPERATINGATSTATION,EMBODYINANDOFFERTHEMANMACHINEINTERFACEFOROPERATINGATTENDANTSMAINLY,ENABLEOPERATORSTOUNDERSTANDONTHESPOTOPERATIONSTATE,TOPRESENTVALUEOFVARIOUSKINDSOFOPERATIONPARAMETERS,ANDHAVEUNUSUALSITUATIONSTOTAKEPLACEETCINTIMETHROUGHOPERATORSSTATION,ANDCANCONTROLANDREGULATETHECRAFTCOURSETHROUGHTHEINPUTEQUIPMENT,SOASTOENSURETHESECURITYOFTHEPRODUCTIONPROCESS,RELIABLE,HIGHEFFICIENT,HIGHQUALITYITISCOLOREDCRTTHATOPERATORSMAINMANMACHINEINTERFACEEQUIPMENTOFTHESTATIONOUTPUTSTHERESPECTINTHECOMPUTER,WHICHCONTROLTHEEQUIPMENTFORINDUSTRYKEYBOARDANDCURSORINIMPORTINGINCOMPUTERSUCHASTHEMOUSE,ORBITBALLTHECONTENTOUTPUTTEDONCRTINCLUDESMAINLY1,THESIMULATIONFLOWCHARTOFTHEPRODUCTIONPROCESSNAMELYBYIMITATINGPRODUCTIONDEVICEANDPRODUCTIONLINETHATTHEFIGUREEXPRESSES,WHICHWINSABIDOFREALTIMESTATUSWITHALLKEYDATA,TOCONTROLPARAMETERANDEQUIPMENT2,THEWARNINGWINDOWBYARRANGINGTHETIMEORDERWAYNAMELYTHEMOSTEMERGINGALARMRANKSTHETOPOFTHEWINDOWANDLISTINGTHEUNUSUALSITUATIONAPPEARINGINPRODUCTIONPROCESSES,IFNUMBERVALUERESTRICTSREPORTINGTOTHEPOLICESHOULDINCLUDETIME,UNUSUALSTATEANDVALUE,CONFIRMINGBYOPERATORANDUNUSUALBRIEFILLUSTRATIONTOTABULATEALREADYOFTHEUNUSUALDATATOUNUSUALLYAPPEAR3,THEREALTIMETRENDSHOWSWITHCURVESAYCOMEOUTCHANGERECENTLY,PRODUCTINGPROCESSOFDATA,SOTHATTHEOPERATORUNDERSTANDSITSDEVELOPMENTANDCHANGETOSOMEEXTENT,ANDCANHELPTOANALYSETHERUNNINGSITUATIONOFTHEPRODUCTIONPROCESSWHICHCANGENERALLYSHOWTHETRENDCURVESOF48DATAINTHESAMESYSTEMOFCOORDINATES,SOCANCOMPAREWITHALLRELEVANTDATA,TOMAKETHEANALYSISONONTHESPOTSITUATIONVERYMORECLEARLYTHEENGINEERSTANDSITISDISPOSEDTODCSOFFLINETHATTHEENGINEERSTANDS,CONFIGURATIONANDNETWORKNODESUPERVISED,CONTROLLED,MAINTAINEDONLINEITSMAINFUNCTIONISTOFINISHTHESYSTEMATICCONFIGURATION,DISPOSETHEWORK,ANDMONITORTHEEACHNODALRUNNINGSITUATIONWHENREALWHENTHELINEISOPERATED,MAKESYSTEMENGINEERCANSTANDINTIMEADJUSTINGSYSTEMDISPOSINGANDSOMESETTLEMENTOFSYSTEMATICPARAMETERTHROUGHENGINEER,TOMAKETHESYSTEMINTHEBESTWORKINGSTATEATANYTIMESYSTEMATICNETWORKITISALLSOMEISOLATEDNODESTHATONTHESPOTI/OISCONTROLLEDANDSTANDS,STANDSATOPERATORSSTATIONANDENGINEER,TOFINISHONESOWNWORKEACHIFNONEOFUNIFIEDCOORDINATIONCANNOTFORMTHEINTACTSYSTEM,THESYSTEMATICNETWORKOFFERSTHEFOUNDATIONFORCOORDINATING,WHICHBECOMESTHECOREOFTHEWHOLESYSTEM1,NETWORKCHARACTERISTICDIFFERENTFROMSOMENETWORKTHATGENERALOFFICEAUTOMATIONADOPTS,THECOMMUNICATIONNETWORKTHATDCSADOPTSWASUSEDFORTHECONTROLANDMANAGEMENTOFHAVETHEINDUSTRIALPRODUCTIONPROCESS,SO,ITSHOULDPOSSESSTHECHARACTERISTICSOFTHEFOLLOWINGREALTIMECHARACTERISGOOD,RESPONDFASTDYNAMICALLYMEETTHEABOMINABLEONTHESPOTENVIRONMENTOFINDUSTRYDEPENDABILITYISHIGHOPENINGISGOOD2,NETWORKSTRUCTUREEARLYLANWITHBETTERREALTIMECHARACTEROFOFTENADOPTIEEE8024MAKINGBRANDTOTALNETWORKORIEEE8025TOMAKETHECARDSURROUNDTHENETWORKALONEETCOFINFORMATIONMANAGEMENTNETWORKOFDCSCONTROLSYSTEMBUTNOMATTERDOMESTICORABROAD,WHICHUSESMOSTISIEEE8023CSMA/CDETHERNETATPRESENTETHERNETENTERSINDUSTRYANDCOMESFROMITSLOWCOST,OPENING,EXTENSIVEDEVELOPMENTANDSUPPORTOFUSINGTHESOFTWAREANDHARDWARELIVE,WHATITUSESTHEMOSTEXTENSIVENETWORKTECHNOLOGYATPRESENTTHEINDUSTRIALCONTROLNETWORKADOPTSETHERNET,ANDCANMAKETHEINDUSTRIALCONTROLNETWORKINCORPORATETHEDEVELOPMENTMAINSTREAMOFTHENETWORKTECHNOLOGYOFTHECOMPUTERDCSCONTROLLERFUNCTIONBLOCKDCSNOTONLYABLETOCOMPLETETHEFUNCTIONSOFTHEORIGINALANALOGINSTRUMENTS,ANDMUCHHIGHERTHANANALOGINSTRUMENTSTHISISBECAUSEITUSESADVANCEDCOMPUTERTECHNOLOGY,COMMUNICATIONTECHNOLOGY,CRTTECHNOLOGYANDCONTROLTECHNOLOGY4CTECHNOLOGYUSINGDIGITALCONTROLAFTERTHEPREDEPOSITEDINTHECONTROLLERROMOFTHEALGORITHMISINFINITE,EACHREPRESENTATIVEOFANALGORITHMKINDSOFFUNCTIONSTHESEFEATURESINTHESIMULATEDINSTRUMENTISACHIEVEDWITHANALOGCIRCUITS,WHICHAREANALOGLINEDRIFT,RESISTORS,CAPACITORSANDOTHERDEVICESRESTRICTED,ASAHIGHPRECISIONANALOGMETERHIGHCOST,OREVENALMOSTIMPOSSIBLETHEDIGITALCONTROLALGORITHMISIMPLEMENTEDWITHTHEPROGRAMWITHAPROGRAMTOREPLACETHEANALOGLINECANREALIZETHEFUNCTIONTHEORETICALLYINFINITE,THISISGREATPROGRESSTHEPRINCIPLEFORTHEVARIOUSDCSSYSTEMSARETHESAMEALGORITHMSAREUSUALLYCALLEDFUNCTIONALBLOCKSFUNCTIONALBLOCKCALLEDTHEFUNCTIONBLOCKLIBRARYASSEMBLYDCSCONTROLLERMAINLYBYTHECPU,ROM,RAM,E2PROM,ADDRESSSETTINGSWITCHESANDOTHERCOMPONENTSCPUCOMPLETETHEOPERATION,ROMISUSEDTOKEEPTHEOPERATINGSYSTEM,FUNCTIONBLOCKLIBRARIES,FUNCTIONBLOCKSAREARRANGEDINTHEROMISSETIN,THEUSERCANNOTBECHANGEDRAMISUSEDTOSAVECPUCOMPUTATIONALRESULTSANDI/OSIGNALSE2PROMKEEPEVENWITHTHEFUNCTIONBLOCKINTOTHECONTROLPROGRAMUNDERTHEPOWER,THECONTROLPROGRAMISNOTLOSTMOREOVER,THECONTROLSCHEMENOTSUITABLE,YOUCANMODIFYMODIFYTHEUSEOFULTRAVIOLETRADIATION,TOERASETHECONTENTSOFTHEE2PROMCONTROLLERINTHENETWORKSHOULDBEADDRESSBYTHEADDRESSSWITCHESTOSETFUNCTIONBLOCKSAREARRANGEDINTHEROMINSOMEDCSCALLSTHISARRANGEMENTFORTHEFUNCTIONCODECODESEQUENCEISAFUNCTIONALBLOCKINTHELIBRARYSADDRESSVARIOUSMANUFACTURERSOFDCSONTHETREATMENTOFSOMEDIFFERENCESINCOMPUTINGALGORITHMS,SONOTTHESAMENAMEIFTHEINTERNALDCSINSTRUMENTSAIDTHEALGORITHMS,BUTITSESSENCEISAPROCESS,ESSENTIALLYTHESAMEINTHEUSEOFTHESEFUNCTIONBLOCKS,ITSHOULDINDICATETHATTHEFUNCTIONBLOCKINPUTANDOUTPUTRELATIONSHIPBETWEENTHEOPERATION,THERECOMPUTINGNEEDSMANYPARAMETERSACCORDINGTOTHECONTROLLEDOBJECTINTHEUSERTODETERMINETHECONTROLSTRATEGYFORMATIONCONTROLPROGRAM,SELECTTHEFUNCTIONBLOCKLIBRARYWITHTHEREQUIREDCONTROLFUNCTIONBLOCKS,CLEARTHECONNECTIONBETWEENTHERELATIONSHIPBETWEENFUNCTIONALBLOCKS,ANDFIRSTOFALLDEFINEITINTHEE2PROMOFTHEADDRESS,ANDOTHERFUNCTIONBLOCKSANDLINKSAREEXPRESSEDWITHTHEADDRESSATTHESAMETIMEFILLINTHEREQUIREDPARAMETERSTHEWORKOFKNOWNCONFIGURATION,WHICHISDIFFERENTFROMTHELANGUAGEUSEDFORPROGRAMMINGCONFIGURATION,CANBEUSEDASMAPS,WHICHMEANSCADFORACADSOFTWARETHATCANDRAWACONTROLLOOPFOREACHFUNCTIONBLOCKANDTHENECESSARYCONNECTIONBETWEENTHEMITISKNOWNASTHEENGINEERSTATIONUSEITTOTHECONTROLLERCONFIGURATIONCONFIGURATION,THEFIRSTDRAWSAMAPLANORISAPLANTHEUSEOFSMALLFUNCTIONBLOCK,THEPAINTINGSAMADIAGRAM,LARGEFUNCTIONALBLOCKS,THEPICTUREISAPLAN1,DEVELOPMENTCOURSEOFPLCINTHECOURSEOFINDUSTRIALPRODUCTION,ALARGENUMBEROFSWITCHAMOUNTORDERSARECONTROLLED,ITCARRIESONORDERMOVEMENTSACCORDINGTOTHELOGICCONDITION,ANDCARRYONTHECONTROLTHATTHECHAINPROTECTEDMOVEMENTSACCORDINGTOTHELOGICRELATION,ANDTHEDATAOFALARGENUMBEROFDISPERSEDQUANTITYAREGATHEREDTRADITIONALLY,THESEFUNCTIONSWEREREALIZEDTHROUGHTHEPNEUMATICORELECTRICCONTROLSYSTEMTHECOMPANYPUTFORWARDANDREPLACEDTHEDEMANDWHICHCONTINUEDTHEELECTRICCONTROLDEVICEINUSAGMIN1968GENERALMOTORS,INSECONDYEAR,AMERICANDIGITALCOMPANYDEVELOPSTHECONTROLDEVICEBASEDONINTEGRATEDCIRCUITANDELECTRONICTECHNOLOGY,ADOPTMEANSOFPROCEDUREAPPLYELECTRICTOCONTROLFORTHEFIRSTTIME,THISITISFIRSTGENERATIONTHATCANPROGRAMMETHECONTROLLER,CALLPROGRAMMABLECONTROLLERPCAFTERTHEPERSONALCOMPUTERABBREVIATEDASPCDEVELOPS,FORBEINGCONVENIENT,INORDERTOREFLECTTHEFUNCTIONCHARACTERISTICOFTHEPROGRAMMABLECONTROLLERTOO,CANPROGRAMMECONTROLLERNAMEPROGRAMMABLELOGICCONTROLLERPLCTHEEIGHTIESOFLASTCENTURYISTOTHEMIDDLEPERIODOFTHE1990S,ITWASPLCTHEPERIODWITHTHEFASTESTDEVELOPINGSPEED,THEANNUALGROWTHKEPT300THISPERIOD,PLCISIMPROVEDBYALARGEMARGININPOWERTODISPOSEOFANALOGQUANTITY,DIGITALOPERATIONABILITY,MANMACHINEINTERFACEABILITYANDNETWORKABILITY,PLCENTERSTHECOURSECONTROLLEDFIELDGRADUALLY,HASREPLACEDANDINDCSSYSTEMRULINGPOSITIONONTHECOURSECONTROLLEDFIELDINSOMEISUSEDPLCHAVECOMMONABILITYTOBESTRONGEASYTOUSEMEETINGSURFACEWIDE,DEPENDABILITYHIGH,ANTIINTERFERENCEABILITYSTRONG,PROGRAMMINGCHARACTERISTICKINGSUCHASBEINGSIMPLETHEPOSITIONINPLCISCONTROLLEDINTHEINDUSTRIALAUTOMATIONESPECIALLYTHEORDERISCONTROLLED,INFORESEEABLEFUTURE,CANREPLACE12COMPOSITIONOFPLCDIVIDEFROMSTRUCTURE,PLCISDIVIDEDINTOAREGULARTYPEANDSECTIONALMODULETYPETWOKINDSREGULARTYPEPLCINCLUDINGCPUBOARD,I/OBOARD,SHOWINGTHEPANEL,MEMORYLUMP,POWER,ETC,THESEELEMENTSAREMADEUPINTOAWHOLENOTDETACHABLEMODULETYPEPLCINCLUDESCPUMODULE,I/OMODULE,MEMORY,POWERMODULE,THEBASEPLATEORTHEFRAMEWORK,THEMODULECANBEMADEUPANDDISPOSESACCORDINGTOCERTAINRULE13COMPOSITIONOFCPUCPUISACOREOFPLC,FUNCTIONSASNERVECENTER,EACHSETOFPLCHASONECPUATLEAST,ITRECEIVESANDSTORESUSERSPROCEDUREANDDATAACCORDINGTOTHEFUNCTIONTHATTHESYSTEMATICPROCEDUREOFPLCGIVES,GATHEREDANDINPUTTHESTATEORDATATHATTHEDEVICESENDSHERELIVEBYMEANSOFSCANNING,DEPOSITREGISTERTHATSTIPULATE,MEANWHILE,DIAGNOSEPOWERANDWORKINGSTATEANDGRAMMARMISTAKE,ETC,PROGRAMMINGOFCOURSEOFCIRCUITINSIDETHEPLCENTERAFTERRUNNING,READTHEORDERONEBYONEFROMUSERSPROCEDURESTORINGDEVICE,PRODUCETHECORRESPONDINGCONTROLSIGNALACCORDINGTOTHETASKTHATTHEORDERSTIPULATESAFTERANALYSING,GOTOCOMMANDRELEVANTCONTROLCIRCUITSCPUANDREALIZESBYARITHMETICUNIT,CONTROLLER,REGISTERMAINLYTHEDATA,CONTROLANDSTATEBUSOFTHECONNECTIONAMONGTHEMAREFORMED,UNITCPUSTILLINCLUDESPERIPHERALCHIP,INTERFACEOFTHEBUSANDRELEVANTCIRCUITTHEMEMORYISUSEDFORSTORINGTHEPROCEDUREANDDATAMAINLY,ISINDISPENSABLECOMPOSITIONUNITPLCINUSERSVIEW,ITISUNNECESSARYTOANALYSETHEINSIDECIRCUITOFCPUINDETAIL,BUTTHERESHOULDBEENOUGHUNDERSTANDINGTOTHEWORKINGMECHNISMOFEVERYPARTTHECONTROLLEROFCPUCONTROLSCPUANDWORKS,ISREADTHEORDER,EXPLAINEDTHEORDERANDEXECUTEDINSTRUCTIONBYITBUTWORKINGRHYTHMISCONTROLLEDFROMTHESIGNALOFSHAKINGTHEARITHMETICUNITISUSEDFORCARRYINGONFIGURESORLOGICOPERATION,WORKUNDERTHECIRCUMSTANCESTHATTHECONTROLLERISCOMMANDEDTHEREGISTERISPARTICIPATEDINOPERATION,STORETHEMIDDLERESULTOFOPERATION,ITWORKSUNDERTHECIRCUMSTANCESTHATTHECONTROLLERISCOMMANDEDTOOCPUSPEEDANDCAPACITYOFMEMORYAREIMPORTANTPARAMETERSOFPLC,THEYAREDETERMININGTHEWORKINGSPEEDOFPLC,IOQUANTITYANDCAPACITYOFSOFTWARE,ETC,SOISEXERCISINGRESTRAINTINCONTROLLINGTHESCALE14I/OMODULETHEINTERFACEOFPLCANDELECTRICRETURNCIRCUIT,FINISHEDTHROUGHINPUTTINGTHEOUTPUTI/OI/OCIRCUITOFI/OMODULEINTEGRATEDPLC,ITISINPUTTEMPORARILYTHESTORINGDEVICEREFLECTSTHESTATEOFTHEINPUTSIGNAL,EXPORTANDCLICKANDREFLECTTHATEXPORTSTHESTATEOFTHELATCHINPUTMODULEVARYELECTRICSIGNALDIGITALSIGNALENTERPLCSYSTEM,OUTPUTMODULETOBEOPPOSITEI/OISDIVIDEDANDIMPORTEDDIFORTHESWITCHAMOUNT,THESWITCHAMOUNTISEXPORTEDDO,ANALOGQUANTITYISINPUTAI,ANALOGQUANTITYISEXPORTEDAO,ETCTHEMODULECOMMONLYUSEDI/OISCLASSIFIEDASFOLLOWSSWITCHAMOUNTDIVIDEACCORDINGTOTHEVOLTAGELEVEL,THEREARE220VAC,110VAC,24VDC,DIVIDEACCORDINGTOTHEWAYOFISOLATING,THEREARERELAYSTHATAREISOLATEDANDISOLATEDWITHTHETRANSISTORANALOGQUANTITYDIVIDEACCORDINGTOTHESIGNALTYPE,THEELECTRICCURRENTTYPE420MA,020MA,VOLTAGEHAVINGTYPE010V,05V,1010V,ETC,ITISACCORDINGTOPRECISIONFEN,THEREIS12BIT,14BIT,16BIT,ETCBESIDESABOVEMENTIONEDIOINCOMMONUSE,THEREISSPECIALIOMODULE,FORINSTANCESUCHMODULEASTHERMALRESISTANCE,ELECTRICTHERMOCOUPLE,PULSE,ETCISITCONFIRMMODULESPECIFICATIONANDQUANTITYTOCOUNTACCORDINGTOI/O,I/OMODULEBUTMANYANDVERYLITTLE,ITSGREATNUMBERRECEIVECPUCANBASICABILITYOFDISPOSITIONOFMANAGEMENTMOST,NAMELYISCOUNTEDTHERESTRICTIONBYTHEBIGGESTBASEPLATEORTHEFRAMEWORKTROUGH15POWERMODULEPLCPOWERISUSEDFOROFFERINGTHEWORKINGPOWERFORINTEGRATEDCIRCUITOFEVERYMODULEOFPLCMEANWHILE,SOMESTILLOFFERTHEWORKINGPOWEROF24VFORINPUTTINGTHECIRCUITTHETYPEISASFOLLOWS,THATTHEPOWERIMPORTSEXCHANGETHEPOWER220VACOR110VAC,DIRECTCURRENTPOWERACOMMONLYUSEDONEIS24VDC16THEBASEPLATEORTHEFRAMEWORKMOSTMODULETYPEPLCSUSETHEBASEPLATEORTHEFRAMEWORK,ITSFUNCTIONISHAVEELECTRICALLY,REALIZETHECONNECTIONAMONGEVERYMODULE,ENABLECPUTOVISITALLMODULEONTHEBASEPLATE,ONMACHINERY,REALIZETHECONNECTIONAMONGEVERYMODULE,MAKEEVERYMODULEFORMAWHOLE17OTHEREQUIPMENTOFPLCSYSTEM17APROGRAMMINGEQUIPMENTTHEPROGRAMMABLEDEVICEISTHATPLCDEVELOPSANDADOPTS,MONITORSOPERATING,CHECKSANDMAINTAINSTHEINDISPENSABLEDEVICE,USEDINPROGRAMMING,DOSOMESETTLEMENT,WORKINGSTATECONTROLLINGTHESYSTEMTHATPLCANDPLCCONTROLTOTHESYSTEM,BUTITDOESNOTPARTICIPATEINDIRECTLYANDCONTROLANDRUNLIVETHESMALLPROGRAMMABLEDEVICEPLCGENERALLYHASHOLDINGTYPEPROGRAMMABLEDEVICE,GENERALLYTHECOMPUTEROPERATESTHEPROGRAMMINGSOFTWAREMAKESPROGRAMMABLEDEVICEATPRESENTTHATISTOSAYWESYSTEMGOTOLOCATIONPLANE17BMANMACHINEINTERFACETHESIMPLESTMANMACHINEINTERFACEISINDICATORLAMPANDBUTTON,THELIQUIDCRYSTALREJECTORTHETOUCHSENSITIVESCREENANORGANICWHOLETYPEOPERATORSTERMINALSTATIONOFTHETYPEANDUSEMOREANDMOREEXTENSIVEATPRESENT,ITISPOPULARIZEDVERYMUCHTHATTHECOMPUTEROPERATIONCONFIGURATIONSOFTWAREMAKESMANMACHINEINTERFACE18THECOMMUNICATIONOFPLCISNETWORKEDMAYCOLLECT,CONVEYPRODUCINGANDMANAGETHEDATAPROMPTLYANDEFFICIENTLYWHILERELYINGONTHEADVANCEDINDUSTRIALNETWORKTECHNOLOGYSO,THEIMPORTANCEOFTHENETWORKINTHEAUTOMATICSYSTEMINTEGRATIONPROJECTISMOREANDMOREREMARKABLE,EVENSOMEONEPROPOSESTHEVIEWSTATEMENTTHAT“THENETWORKISTHECONTROLLER“PLCHAVEFUNCTIONTHATCOMMUNICATIONNETWORK,ITMAKEPLCANDBETWEENTHEPLC,PLCWITHGOTOLOCATIONCOMPUTERANDOTHERINTELLECTUALEQUIPMENTCANEXCHANGEINFORMATION,FORMAUNIFIEDWHOLE,REALIZEDISPERSINGCENTRALIZEDCONTROLMOSTPLCHASRS232INTERFACE,PUTSANDSUPPORTSTHEINTERFACEOFEACHCOMMUNICATIONPROTOCOLWHENTHEREISSOMECOMMUNICATIONOFPLCADOPTTHROUGHSOMEDATACOMMUNICATION,PROFIBUSORINDUSTRYSETHERNETOFINTERFACEMPINETWORKMOREMAINLYNOW2DESIGNBASICPRINCIPLEOFPLCCONTROLSYSTEM21MEETTHECONTROLREQUESTWHICHISACCUSEDOFTHETARGETMAXIMUMLY22ONTHEPREMISEOFMEETINGCONTROLREQUEST,ISITMAKECONTROLSYSTEMSIMPLE,ECONOMY,USEANDMAINTAINCONVENIENTTOMAKEEVERYEFFORT23GUARANTEETHECONTROLSYSTEMISSAFEANDRELIABLE24CONSIDERTHEDEVELOPMENTOFPRODUCTIONANDIMPROVEMENTOFTHECRAFTSHOULDLEAVETHESURPLUSPROPERLYWHILECHOOSINGPLCCAPACITY3PLCSOFTWARESYSTEMANDDAILYPROGRAMMINGLANGUAGE31PLCSOFTWARESYSTEMISMADEUPOFSYSTEMATICPROCEDUREANDUSERSPROCEDURETHESYSTEMATICPROCEDUREINCLUDESCONTROLLINGPROCEDURE,COMPILER,DIAGNOSTICPROGRAM,ETC,USEDFORMANAGETHEWHOLEMACHINE,TRANSLATETHEPROCEDURELANGUAGEINTOAMACHINELANGUAGINGMAINLY,DIAGNOSETHEMECHANICALDISORDERSYSTEMSSOFTWAREOFFERBYPLCPRODUCERANDSOLIDIFICATIONAMONGEPROM,CANTDIRECTACCESSINTERFEREFROMALREADYUSERPROCEDUREWHETHERUSERACCORDINGTOONTHESPOTCONTROLREQUEST,USEDFORREALIZINGVARIOUSKINDSOFCONTROLWITHPROCEDUREAPPLICATIONPROGRAMTHELOGICCONTROLTHATLANGUAGEMAKEOFPLCSTEP7ISUSEDFORSIMATICPROGRAMMABLELOGICCONTROLLERCONFIGURATIONANDSTANDARDSOFTWAREPACKAGEOFPROGRAMMING,THATISTOSAYUSERPROCEDURE,WEUSESTEP7ISITCARRYONHARDWARECONFIGURATIONANDLOGICPROCEDUREWORKOUTTOCOME,ANDTHELOGICPROCEDURECARRIESOUTTHEMONITORINGONLINEOFTHERESULT32PROGRAMMINGLANGUAGETHATPLCOFFERS321THELADDERSHAPEDPICTURELANGUAGEOFSTANDARDLANGUAGEISAKINDOFMOSTFREQUENTLYUSEDLANGUAGESOFOURSTOO,ITHASTHEFOLLOWINGCHARACTERISTIC3211ITISAKINDOFFIGURELANGUAGE,TERMOFCONTINUINGTOUSERELAYCONTACT,COILTHATTHETRADITIONCONTROLSINPICTURES,CONTACTINGETCANDSOMEGRAPHICALSYMBOLSAREFORMED,THEVERTICALLINEOFLEFTANDRIGHTSIDESISCALLEDANDCONTROLLEDTHEBUSBAR3212THECONTACTCONTACTONLYOFTENOPENSANDOFTENCLOSESINTHELADDERSHAPEDPICTURE,THECONTACTCANBETHATCANBEASTATEOFCONTACTORINSIDEREGISTER,COUNTEROFTHERELAY,ETCWITHINPLCTOOTHATPLCINPUTANDCLICKTHESWITCHCONNECTED3213CONTACTOFLADDERSHAPEDPICTURECANWANTONBUNCH,CONNECTINPARALLEL,THECOILCANONLYBECONNECTEDINPARALLELANDCANCONTACT3214INSIDERELAY,COUNTER,REGISTER,ETCCANTDIRECTLYCONTROLOUTSIDELOAD,CANONLYMAKEMIDDLERESULTTOUSEWHILESUPPORTINGCPU3215PLCSCANSTHEINCIDENTACCORDINGTOCIRCULATION,CARRYOUTALONGTHEPRIORITYORDEROFTHELADDERSHAPEDPICTURE,RESULTOFTHECYCLESTAYINSTATEOFOUTPUTTINGTEMPORARILYINTHEPERSONWHODEPOSITSOVALUEORDEREDTOOUTPUTCANREGARDASTERMSUSEAMONGTHEPROCEDUREINUSERINTHESAMESCANNING322SENTENCEPREDICATIVESPEECH,ISSIMILARTOTHEASSEMBLERLANGUAGE323LOGICFUNCTIONALDIAGRAMLANGUAGE,CONTINUETOUSESEMICONDUCTORLOGICBLOCKDIAGRAMISITEXPRESSTOCOME,ONEOPERATIONFRAMEGENERALLYSHOWONEFUNCTIONONTHELEFTDRAWINTRODUCTION,ONTHERIGHTPAINTANDEXPORT4USETHEPROGRAMEOFSTEP741ESTABLISHINGAPROJECTSTRUCTURE,THEPROJECTISJUSTLIKEAFILE,ALLDATAEXISTAMONGTHEMWITHTHESTRUCTUREOFDIVIDINGFLOOR,YOUCANUSEATANYTIMEAFTERESTABLISHINGAPROJECT,ALLOTHERTASKSARECARRIEDOUTUNDERTHISPROJECT42CONFIGURATIONONESTATION,CONFIGURATIONONESTATIONTOAPPOINTYOUWANTPROGRAMMABLECONTROLLERTHATUSE,SUCHASS7300,S7400,ETC43CONFIGURATIONHARDWARE,CONFIGURATIONHARDWAREAPPOINTCONTROLSCHEMEOFYOUWANTTEMPLATETHATUSEANDWITHWHATKINDOFADDRESSVISITTHESETEMPLATEAMONGTHEPROCEDUREINUSERAMONGTHEFORMINCONFIGURATION,THEADDRESSNEEDNTGENERALLYBEREVI