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1、中文2300字ThestatusanddevelopmenttrendofProgrammableLogicController(PLC)RockwellAutomationControlLogicProductManager,ChinaRegionPLCistoimprovetheproductivityofthedevelopmentoftherequirements-driven.Upgradingdifficulttomaintaintheinconvenience.Withthedevelopmentofelectroniccomponents,Before
2、andafterthe1969inventionofthePLC(ProgrammableLogicController).AB(AllenI.Bradley)istheinventorofthePLCAndPLC,oneofthefamilyastheuseofregisteredtrademarks.AB(Rockwell)sinceActionoftheacquisition),ThefirstistoreplaceamajorroleinPLCRelay.Exclusivelyforthelogicof(order)tocontrolfunctionsofas
3、inglesmallmemory.However.in-the-loopregulation.StillneedtoloopasingleinstrumentorDCS.Withelectronictechnology,controltechnology,PLCfromthesimpleThedevelopmentofthedigitalvolumecontroltoasimpleanalogcontrolanddigitalvolumecontrolwithThecombinationofapartialsubstituteforthefunctionofsingl
4、e-loopinstrumentation.PLC'sfirstmajorapplicationintheautomotiveproductionline.WiththeapplicationofContinuouslyexpandtheareaofavarietyofhouseholdsinPLC.InordertomeettheneedsofdifferentApplicationoftherequirementsoftheneedsoffamilieswithastrongPLCitselfflexibility.HouseholdsPLCFactorysolu
5、tionisstandardized,modularandnetwork.Input,outputsignalinto20mAandsoon,eachsignalusing.Atypesofprocessingmodules,eachmoduletherearemultiplechannels,sothatthecompositioncannotWiththesizeofthesystem.Atthesametime,alsocanreducetheR&Dandproductioncosts.StandardResultsofastandardizedprogramm
6、inglanguages.IEC61131-3Inthedatastructure,programstructure,programminglanguageanddataexchange,etc.Establishedinternationalstandards,anewtypeofPLC,includingreferencetotheDCSaremarkedDevelopmentpotential.PLCfamilyofnetworkcapacityfromscratch.TodayhasbeenveryPowerful.Throughthenetwork.Dece
7、ntralizedcontrolcanbeachieved,reducinginstallationcosts.Toimproveintegration.Itispreciselybecausethisflexibility.UserscaneasilyBuildtheirownautomatedcontrolsystem.HouseholdsPLCisdesignedforIndustrialenvironment,therefore,reliabilityandstronganti-interferenceability.HouseholdsPL
