基于PLC的污水处理系统外文翻译文档格式.doc
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基于PLC的污水处理系统外文翻译文档格式.doc
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自动化112班
学生姓名:
何荣法
指导教师:
张光辉
学院:
信息工程与自动化学院
2015年5月
ApplicationofcontrolsystemonthebaseofPLCinsewagetreatment
Thepaperintroducesadistributedcontrolsystemofsewagetreatment,andthecoreofthesystemisPLC.Thestructureofthecontrolsystem,theassignmentandimplementationofthetasks,thecontrolschemeandthedesignconceptofprogramareexpounded.Thewayofcentralmonitoringmanagementanddispersingcontrolisusedbythecontrolsystem;
thelong一distancecontrolandmonitoringoffieldequipmentareunchargedoftheuppercomputer;
thesoftwareprogramofdesignsusesIntouch7.0.Thespecifictechnology,equipment,thecontrollingofmainparameterandseveralrunningdataareunchargedofthePLCstations,andthesoftwareprogramofdesignsusesConcept2.2XLwithonlinetrackingandoutlinesimulating.MB+netisadoptedbythecommunicationbetweentheuppercomputerandthePLCstations,withitssimplybuildingnet,quicklyrunningandstablecommunication.TheautomaticcontrolofPLChasbeensuccessfullycompletedinsewagetreatment,whichhasimprovedtheoperationefficiencyandmanagementlevelofsewagetreatmentequipment
IntroducedtotakePLCasthedistributetypecontrolsystemofcoreinthewastewatertreatmentsystemofapply.Concretelydescribedthestructure,missionofthecontrolsystemanallotmentandcarryout,thewayofcontrolandthethoughtoftheprogramdesign.Thewaycontrolledtheconcentrationmonitorofthesystemadoptionamanagementandscatteredacontrol,theplaceofhonormachineberesponsibleforthespotthelongrangeoftheequipmentscontrolandsurveillance,softwareadoptionIntouch7.0drawup.ThePLCnativestationisresponsiblefortotheconcretecraft,equipmentandismainlycontrolledparametertocarryoncontrolandcollectvariousmovementdata,theprogramdesignadoptionhaveon-linefollowwithoff-lineimitatetheConceptoftruefunction2.2XLsoftware.PlaceofhonormachineandofthePLCadoptionsetthenetbequicklysimpleandcirculatespeed,correspondbyletterthestabilitystrongMBnet.ThewholecontrolsystemsuccessfullysolvedthePLCcontrolsaproblemintheautomationwithinwastewatertreatmentandraisedawastewatertreatmentequipmentstocirculateanefficiencyandmanagelevel.
Recently,forcarryingouthighquality,lowconsume,stabledependablemovement.Domesticandinternationalmanywastewatertreatmentfactoriesadoptedamodernforerunnertocontroltechniqueandcalculatortechniqueandconstitutecalculatordirect,controlthus,managesystem.Makesystemexcellenttoturnmovement.Buttheprogrammablelogiccontroller(PLC)thentakemicroprocessorascore.Synthesizethecalculatortechniqueautomaticallycontrolstechniqueandcorrespondencetechniquebutdevelopsofakindofnewandingeneraluseautomaticcontroldevice.Havestructuresimple,functionsuperior,dependablesexGao,workproperlywordsingeneraluse,beeasytoplaitdistance,usageconvenienceetc.advantageetc.ThesilverCitythefirstwastewatertreatmentfactoryadoptedaSBRcraftandtakePLCasthecontrolsystemofcore,dayafterhandlingthesewage10×
104ttheprocessingofreachmarksewagecanusedforanagricultureirrigation.
1Controlsystemstructure
Controlthewayof"
concentrationmonitormanagement,scatteracontrol"
ofthesystemadoption.Theemulationhold,placeofhonormachine,gatheralinemachine,printertoBelocatedonmediumcontrolroom,twosetPLCsarelocatedoncontrolthespot.Adoptthiskindofstructurecanmaketheinformationintheproductionlinecancentralizedmanagementwithcarryoutwholeoperation,managementwithexcellentturn.Alsomaketocontroldangerousdispersioninthemeantime,raisethesystemcredibility.
1.1Theuppercomputers
MediumcontroltwocalculatoradoptionPIIclassworksofroomtocontrolmachine,circulatetheoperatesystemofWindowsNT.Theplaceofhonormachineberesponsibleforonthesceneestablisheachlongrangecontrol(full-automaticcontrol,automaticcontrol,ordertomoveacontrol)withsurveillance,makeuseofIntouch7.0engineeringsoftwarepackagesprovideagoodpersonmachinedialogueboundarybutobtainconcerningparameterandequipmentsappearanceinformationfromthePLCbysearchingaway,keepaviewmanifestationtocomeoutontheCRTbygoodsketchtype,printanecessarydatainthemeantimeandbeprovidedforlordtocontrolandmanagerinstructionproduce.Superviseandcontrolboundarybutincludethesystemtotaldiagram,systemcentdiagram,imitatethequantitygeneralchart,parameteraconstitution,reporttothepoliceawindow,historytrendandregisterawindowetc.boundarybut.Inthesystemtotaldiagram,circulatethepersonnelcankeepwatchonsignals,suchasallmovementappearances,equipmentstroubleandliquidwhichcontrolanequipmentanddischargeetc.Operateapersonnelinthesystemthecentthediagramcancarryonasinglemachinepointtomovetocirculateanoperationtoallcontrolequipment,becomethesetautomaticallycirculateoperationorthewholefactoriesfull-automaticoperationcombinesurveillance.Inthemeantimeplaceofhonormachine2anddoaplaitdistanceamachine.Mediumcontrolroomtoestablishanotheraninsettypeemulationtohold,isbeenonecontrolbytheplaceofhonormachine,inordertokeepthecraftprocessoftheviewmanifestationwholefactoryandmainparametervalue.
1.2ThePLCstand
Accordingtowastewatertreatmentoftwopart,thespotthelongrangeoftheequipmentsthecontroloutputandthespotthesignalcollecttocontrolastationcompletionfromtwoPLCwoodground.PLC1nativecontrolstationcontrolthespacegrid,sewagepromoteapumphouse,Puspirittosinksandpond'
setc.toprepareaprocessingpart.ThePLC2nativecontrolstationcontrolsdirtymiretodehydrate,presstofiltermachineetc.department..PLC3nativecontrolstationcontrolSBRlivingcreatureprocessingpart.Moreover,theonthespotnativecontrolstationiseachtoestablishanoperationterminaltoestablisheach,beresponsibleforatnativetoestablisheachcontrolonthescene.(automaticcontrol,ordertomoveacontrol)
Thespotiseachthephysicalparameterthatthesupervisionorderandincludewaterlevel,temperature,dischargeandturnsoon,electriccurrent'
setc.imitatequantity,fromtoinresponsetoofanappearancespreadafeelingmachineorchangetosendtoamachineexaminationtocomeoutandchangeintotheelectriccurrentsignalofthe4~20mA,throughshieldinsidethePLCthattheelectriccablesendstoeachstaturessystem,fromthePLCpicksupapeoplethroughvariousmoldpiecesampletelecommunicationnumber.Same,imitatequantitycontrolthesignalsendtoperformanceorganizationbythe4~20mAelectriccurrentformafterbeingoutputbythePLC,controlperformanceorganizationofaction.
TheQuantumseriesPLCofSchneidercompanyissatisfyliberalof,accordingtostandardofnetworkconjunctionandthespottotallineconjunctionetc.applicationthetechniqueprovidedvariousnetworkachoice,supportModbus,Mod-busPlus(MB+),thelongrangeI/0,TCP/IPetc.networkconjunction,havestrongerandvivid.Therefore,thewastewatertreatmentisconvenienttoarriveofthePLCchoosetheseriesofMOofuseSchneider.
1.3Correspondences
MBagreementistheMcompanyreleaseofanopentypeoftheadoptionIEEE802.4correspondbyletter5agreementsthespottotallineofcardagreement.MBthenetworktogetherothernetworkscomparetohaveasetofnetsimple,theinvestmentbelittle,networkspeedquick,correspondencethestabilitystrongetc.characteristics,itmakecalculator,controllerandotherdatasourcesthroughanusagedoublewringlineorfiberopticcableBeabodytotogethercarryoncorrespondenceatthewholenetworktop.ButtheCPUmoldpieceoftheMQseriesPLCimplyMBcorrespondence,thereforecorrespondbyletteranetworktochoosetouseMBnetwork.Mediumcontroltwomachine,twocontrolstationswithnativePLCofroomtopassMBthenetworklinktogether.ThePLCCPUmoldpiecepassesMBcorrespondenceandtwomachinescarryondatacommutationandcollecttheplaceofhonorsupervisionvariousoperationinstructionofthesystemandthespottheexaminationsignalanddata,throughanalysishandle,passexportationmoldpiecetocontrolobjectoutputcontrolsignal;
Inthemeantime,thePLCpassesMBnetupwardthemachinereturntovariousdata,placeofhonormachinelogarithmsaccordingtocarryonanoperationprocessing,showvarioussignalandprintvariousstatement.
2ThedesignofPLCcontrolprogram
Thesystemhasfourkindsofcontrolmethods:
Thenativehandmovesacontrol,singlesetequipmentspointmovesacontrol,becomeaset,theequipmentsautomaticallycontrols,thewholefactoryequipmentfull-automaticcontrol.Twokindsofex-withgeneralmethodsatestablisheachadjusttotryormaintainusage,thesystemismainlycirculatewithfull-automaticcontrol.Underthiskindofway,alleachkindofequipmentfromPLCaccordingtoinadvancedrawupofprocedureautocontrol,don'
tneedtooperateapersonnelanintervention.VariousspotdataspreadsahighestmachinethroughaPLC,comeoutintheplaceofhonoronboarddescriptionandmakethecraft,equipmentsmovementofwholefactoriesgetanoverallcontrol.
ThelivingcreatureprocessingpartofthePLC3stationcontrolisthewholewastewatertreatmentofkeypart,belimitedbyspace,onlywiththePLC3standofprogramdesignforexample.
2.1Processofcontrol
ThePLC3stationswereusedtocontroltogetintoPuspiritfromsewage
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