附件2：外文原文ProgrammableControllerDesignedforElectro-pneumaticSystemsSummarythisitemismainlytheprocedurewhichstudieselectricitysystemandinbriefvalidcontrolcurrentofairtolaunchmachinetocompatiblyflowtheappearanceofsystem.Itofthefulfillmentfoundationincludeaccordingtothecontrolprocedureofparticularlyhaveofthecurrentofaircontroller,automationdesign,currentofairsystemanddesignaccordingtotheelectronicsofthetinycontroller.1.BriefintroductionTheautomationwhichusesanelectricitytechniquemainlyconstitutesto.from3part:Launchmachineormotor,sensororbutton,theformiszeropartsessuchasthecontrolofflowerpetal.Now,greatlypartofsystemlogicthecontrollersoftheoperationdriveallprocedurelogiccontroller(PLC)replace.PLCsensorandswitch'saringanimportationtocarry,butlaunchthedirectcontrolvalveofmachineisanexportationtocarryandhaveaninternalproceduretooperateamongthemallcirculateessentiallogic,imitateotherdeviceslikecalculator,infixedtimemachineetc.,carryonacontroltothewholemovementappearanceofsystem.Canaccordingtoneednumeroustimetoestablishandimitatethusofsystem,soallfromPLCusage,thisitemcontainsvividadvantage.Thereforecansavetime,thedangerofdecreaseerror,inthemeantimeunderthesistuationthatusesamematerial,itcanbegettingmoreprecise.ManycompanythatisonthemarketusedthePLCofnormalregulationsanditcannotonlycontrolwiththecurrentofairsystem,butalsocanusevariouselectricityequipments.PLCwiderangeofapplication,canbeapplyinmuchindustrytoproducemedium,evenusedforsafetyandautomationofbuildingin.Becauseofabovevariouscharacteristic,thePLCprovidedalotofresourcesesinsomelyphysicallyappliedly,evenincludenotaresourcesofcontrolthesystemandtheelectricitysystemwasakindofapplicationlikethis.Fortheengineeringofautomation,thePLCusageismoreexpensive,particularlyistothosesmallscaledsystems.Aimatthiskindofcircumstance'sakindofviablewayestablishacontrollerthatcanprovideparticularsizeandfunction.Thiskindofcontrollercancreateaccordingtothetinycontroller.Thiskindofappliesscopeaccordingtothetinycontrollersmaller,themachinethatcanusedforatypeperhapscanusetodoabelikethecommonPLCissimilarandcanbewovenadistanceofcontroller,soitcanpassvariableturnoflogicproceduretocarryonvarioushomework.Allofthesecharacteristicbasisconcretedemandofdissimilaritybutdissimilarity,concreteofdesignofempiricalofdissimilaritybutdissimilarity.Butthemainadvantageofthiskindofdesignlieindesigningapersonneltounderstandanowncontrollerverymuch,canfreelycontrolthebigbabysizeofcontroller,changeitoffunction.Thismeansthatthisitemcontainsmorespecial,butinthemeantimethecontrolofsystemalsofromitofdesigncontrol.2.ElectricitysystemPeoplecanfindouttospeakofinthreeprecedingcontextsfromanautomationofbasicparts,theinadditionisalogiccircuitwhichcontrolssystem.Thetechniqueofonlymatureforerunnercansmakeaparticularlogiccircuitandperformancethepartsthatexactitudeneedwhenoperatetogetstripe.Forasimplesport,thesystemautoprocedurecancomplete,butforindirectormorecomplicatedsport,theprocedureofsystemwillproducecomplicatedcircuitandfalsesignal.Thisisneedanothermethodcansavetime,produceclearcircuit,cankeepaccidentalsignalfromhandoverfoldtostopwithcircuit.Thelineroadbedmethodofdifferentstandardofthiskindofwaycallfollowthesequenceandadvancegraduallytypeorrulesystem,ittothecurrentofairandtheelectricitysystemveryvalid,andisalsoafoundationofthisitem.Itincludeaccordingtolaunchthesystemoffounda...
