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1、IEC61784-1-2Edition1.02023-03INTERNATIONA1.STANDARDNORMEINTERNATIONA1.EIworks-Profi1.es-Part1-2:Fie1.dbusprofi1.es-CommunicationProfi1.eFami1.y2Reseauxindustrie1.s-Prof1.1.s-Partie1-2:Prof1.1.sdebusdeterrain-Fami1.1.edeprofi1.sdecommunication2THISPUB1.ICATIONISCOPYRIGHTPROTECTEDCoPyright2023IEC1Gene
2、va,Switzer1.andAJ1.rightsreserved.UnteesO1.herWigespecified,nopartofthisPUb1.iCabonmaybereproducedoruti1.izedinanyformOfAanymeans,e1.ectronicormeca11opyigandmcro1.m,WAhOSpermissioninwntngfromeitherIECofIECmemberNationa1.Committeeinthecountryoftherequester.IfycuhaveanyquestionsaboutIECcopyrighthavean
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10、.Pub1.ishedd&溯IRtesnouvdospubiica1io11sJxIrUO5OisponibteeISeMunetoisparmoparemai1.ServiceC1.ientsWCbS1.OrC.icc.Ch1.CSCSivou5cirznousdo1111erdescomnieniairessurcettepub1.icationousiYOUgavezdesquestionscontac5eznou:sa1.esi9c.ch.IECProducts&ServicesPocta1.produc1.s.icc.chDaOUVTeZnoirepuissantmoieurdere
11、chercheetoonsJiezgfatuitementiousteeaerusdesPuMCaHons.Avecunabo11emnt.vousaureztoupursaccesauco11tenuajourdap1.6avosbcso11s.EIectropedU-www.e1.ectropecuonnafCrQ1.eCge1.gneaumonde,avecpkisCe22300a11cestrmnojqesnang1.as1efranais.nique1.esIeCmeg6quiva1.ensdans19Ianguesajitio11tsEga1.OTenta卬dVOCabasEtec
12、tfOtechnique1.nfnationa1.(IEVenigne.IEC61784-1-2Edtion1.02023-03INTERNATIONA1.STANDARDNORMEINTERNATIONA1.EIworks-Profi1.es一Part1-2:Fie1.dbusprofi1.es-CommunicationProfi1.eFami1.y2R6seauxindustrie1.s-Profi1.s-Partie1-2:Profitsdebusdeterrain-Fami1.1.edeprofi1.sdecommunication2INTERNATIONA1.E1.ECTROTEC
13、HNICA1.MMISSIONCOMMISSIONE1.ECTROTECHNIQUEINTERNATIONA1.EICS35.100.20;3524050ISBN978-283226584-OWarning!Makesurethatyouobtainedthispub1.icationfromanauthorizeddistributor.Attention!Veui1.1.ezvousassurerquevousavezobtenucettepub1.icationviaundistributeuragree.tfR*qcAr3o1.3的fu!bEht*S9gvCsiescrUg8debCoFBcCnE1.Mh:4E2cnjrionaCONTENTSFOREWORD4INTRODUCTION61 Scope72 N
