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1、外文翻译（原文）PlantModelGenerationforPLCSimulationHyeong-TaeParkAbstract:ThispaperreportsanautomatedprocedureforconstructingaplantmodelforPLCsimulation.SincePLCprogramscontainonlythecontrollogicwithoutinformationontheplantmodel,itisnecessarytobuildthecorrespondingplantmodeltoperformthesimulatio
2、n.Conventionally,aplantmodelforPLCsimulationhasbeenconstructedmanually,whichrequiresmucheffortandindepthknowledgeofthesimulation.Asaremedyforthisproblem,weproposeanautomatedprocedureforgeneratingaplantmodelfromthesymboltableofaPLCprogram.Todoso,weproposeanamingruleforPLCsymbolssothatthesy
3、mbolnamesincludesufficientinformationontheplantmodel.Byanalysingsuchsymbolnames,weextractaplantmodelautomatically.Theproposedmethodologyhasbeenimplementedandtestrunsperformed.Keywords:agilemanufacturing;CAD/CAM;CAPP;simulation1.IntroductionTosurviveandprosperinthemodernmanufacturingera,ma
4、nufacturersneedtocontinuouslyimprovetheirproducts,aswellastheirproductionsystems.Amodernmanufacturinglineisahighlyintegratedsystemcomposedofautomatedworkstations,suchasrobotswithtool-changingcapabilities,ahardwarehandlingsystemandstoragesystem,andacomputercontrolsystemthatcontrolstheopera
5、tionsoftheentiresystem.Sincetheimplementationofamanufacturinglinerequiresheavyinvestment,properverificationofaline’soperationalstatusshouldbeperformedtoensurethatthehighlyautomatedmanufacturingsystemwillsuccessfullyachievetheintendedbenefits.Simulationtechnologyisconsideredtobeanessential
6、toolinthedesignandanalysisofcomplexsystemsthatcannotbeeasilydescribedbyanalyticalormathematicalmodels.Simulationisusefulforcalculatingutilisationstatistics,findingbottlenecks,pointingoutschedulingerrors,andevenforcreatingmanufacturingschedules.Traditionally,varioussimulationlanguages,incl
7、udingARENAandAutoMod,havebeenusedforthesimulationofmanufacturingsystems.Thesesimulationlanguageshavebeenwidelyacceptedbothbyindustryandbyacademia;however,theyremainasanalysistoolsfortheroughdesignstageofa-23-外文翻译（原文）productionline,becausetheirsimulationmodelsarenots
