2、ARINC429总线讲解课件

ARINC429DataBusMARK33DITSARINC429DataBusMARK33DITS1IntroductionThepurposeoftheserialinterface,orARINCsystemasitismorecommonlycalled,istoprovidedatainserialformatforcommunicationbetweenvariousavionicequipment,suchasentrypanels,avioniccomputersandelectronicdisplays.TheserialdataformatconformstotheARINC429specifications,whichofferacommonprotocolfordatainterchangebetweenequipmentproducedbyvariousmanufacturers.OBJECTIVEUnderstandtheconceptandthebasicdefinitionsoftheARINC429standard.DifferentiatethedifferentwaysARINC-429interfaceswithcockpitinstrumentandavionicequipment.DescribethefunctionalityofeverycomponentintheARINC-429interfacingsystem.FamiliarizationwithARINC-429transmitandreceivecircuit.IntroductionThepurposeofthe2AircraftARINC-429CommunicationAircraftARINC-429Communicati3ARINC429DataBusesAnARINC429bus(channel)consistsofasingleTwistedShieldedWirePair(TSWP),withwireAofslatecolorandwireBofwhitecolor.TheshieldoftheTSWPmustbegroundedatEACHendandatALLjunctionsalongthetransmissionbus.ARINC429busesareunidirectionalandtransferserialdatainARINC429formatfromatransmittertoareceiver.Withbi-directionaltransmissionwewilluse2separatechannelsorbuses.Atransmittercouldtalktoanumberofreceivers(max.20)ononebus.Eachreceiverwillhavetomonitorthereceivinglineforapplicabledata,itdonothavetoacknowledgethereceptionofthedata.TheARINCdatabusesmustbeidentifiedbyname,e.g.,WXRCP,CDUCL,VHFL1,etc.ARINC429DataBusesAnARINC44ARINC429SignalCharacteristicsAdatabitof"1"consistsofahighperiodfollowedbyanullperiod.Adatabitof“0"consistsofalowperiodfollowedbyanullperiod.Therearetwosignaltransmissionrates:lowspeedof12.5Kbits/s,andhighspeedof100.0Kbits/s.AnARINC429busmustcarrydataofthesamespeed,eitherloworhigh.AsingleARINC429busmaycarrymanyARINC429words,eachcontainingdifferentdata.ConsecutiveARINC429wordsmustbeseparatedbyatimeofatleastfournullperiods.ARINC429SignalCharacteristi5ARINCWordFormatARINCWordFormat6ARINCLabelARINCLabel7ARINCLabelARINCLabel8Source/DestinationIdentifier(SDI)Source/DestinationIdentifier9SDI–MultipleSourcesSDI–MultipleSources10SDI–MultipleSourcesSDI–MultipleSources11Sign/StatusMatrix(SSM)Sign/StatusMatrix(SSM)12Sign/StatusMatrix(SSM)Sign/StatusMatrix(SSM)13ParityParity14ParityParity15ParityParity16ParityParity17ParityParity18DataEncodingFiveGroups:BinaryData(BNR)Binary-Coded-DecimalData(BCD)DiscreteData(DIS)Maintenance“Acknowledgement”,ISOAlphabetNo.5andMaintenanceData(AIM)DataEncodingFiveGroups:19Datatype:Binary–BNRDatatype:Binary–BNR20Spec.ARINC-429-BNRDataTableSpec.ARINC-429-BNRDataTab21Datatype:BinaryCodedDecimal–BCDDatatype:BinaryCodedDecima22Spec.ARINC-429-BCDDataTableSpec.ARINC-429-BCDDataTab23Datatype:Discrete-DISDatatype:Discrete-DIS24Datatype:AIMDatatype:AIM25ARINC429ReceiverSchematicCircuitDiagramARINC429ReceiverSchematicCi26ARINC429TransmitterSchematicCircuitDiagramARINC429TransmitterSchematic27ARINC429DataBusMARK33DITSARINC429DataBusMARK33DITS28IntroductionThepurposeoftheserialinterface,orARINCsystemasitismorecommonlycalled,istoprovidedatainserialformatforcommunicationbetweenvariousavionicequipment,suchasentrypanels,avioniccomputersandelectronicdisplays.TheserialdataformatconformstotheARINC429specifications,whichofferacommonprotocolfordatainterchangebetweenequipmentproducedbyvariousmanufacturers.OBJECTIVEUnderstandtheconceptandthebasicdefinitionsoftheARINC429standard.DifferentiatethedifferentwaysARINC-429interfaceswithcockpitinstrumentandavionicequipment.DescribethefunctionalityofeverycomponentintheARINC-429interfacingsystem.FamiliarizationwithARINC-429transmitandreceivecircuit.IntroductionThepurposeofthe29AircraftARINC-429CommunicationAircraftARINC-429Communicati30ARINC429DataBusesAnARINC429bus(channel)consistsofasingleTwistedShieldedWirePair(TSWP),withwireAofslatecolorandwireBofwhitecolor.TheshieldoftheTSWPmustbegroundedatEACHendandatALLjunctionsalongthetransmissionbus.ARINC429busesareunidirectionalandtransferserialdatainARINC429formatfromatransmittertoareceiver.Withbi-directionaltransmissionwewilluse2separatechannelsorbuses.Atransmittercouldtalktoanumberofreceivers(max.20)ononebus.Eachreceiverwillhavetomonitorthereceivinglineforapplicabledata,itdonothavetoacknowledgethereceptionofthedata.TheARINCdatabusesmustbeidentifiedbyname,e.g.,WXRCP,CDUCL,VHFL1,etc.ARINC429DataBusesAnARINC431ARINC429SignalCharacteristicsAdatabitof"1"consistsofahighperiodfollowedbyanullperiod.Adatabitof“0"consistsofalowperiodfollowedbyanullperiod.Therearetwosignaltransmissionrates:lowspeedof12.5Kbits/s,andhighspeedof100.0Kbits/s.AnARINC429busmustcarrydataofthesamespeed,eitherloworhigh.AsingleARINC429busmaycarrymanyARINC429words,eachcontainingdifferentdata.ConsecutiveARINC429wordsmustbeseparatedbyatimeofatleastfournullperiods.ARINC429SignalCharacteristi32ARINCWordFormatARINCWordFormat33ARINCLabelARINCLabel34ARINCLabelARINCLabel35Source/DestinationIdentifier(SDI)Source/DestinationIdentifier36SDI–MultipleSourcesSDI–MultipleSources37SDI–MultipleSourcesSDI–MultipleSources38Sign/StatusMatrix(SSM)Sign/StatusMatrix(SSM)39Sign/StatusMatrix(SSM)Sign/StatusMatrix(SSM)40ParityParity41ParityParity42ParityParity43ParityParity44ParityParity45DataEncodingFiveGroups:Binary