Communication Bus V-Net for the Centum CS.pdf
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Communication Bus V-Net for the Centum CS.pdf

CommunicationBusV-NetfortheCentumCS.pdf

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COMMUNICATIONBUSV-NETFORTHECENTUMCSEMORIToshiyuki*1MIZUMORITakashi*2EBASHIHiromichi*2SOGOSadatoshi*3ThispaperintroducesthetechnicalmeritsofV-net,whichwasdevelopedasacontrolcommunicationbusfortheCENTUMCSdistributedcontrolsystem.INTRODUCTION4.CostperformanceToguaranteeandrealizetheaforementionedhighrateofop-Acommunicationsystemforconnectingstationsinthesys-eration,highreliability,andreal-timeoperationatlowcost.V-templaysanimportantroleinadistributedcontrolsystem(DCS).netisacontrolcommunicationbusincorporatingthethreecon-Thecommunicationsystemdeterminesthesuperiorityorinferi-ceptsabovethathasbeendevelopedinconsiderationofthefol-orityoftheentirecontrolsystem.InDCScommunicationasrep-lowingtwoconceptsandisusedwiththeCENTUMCS.resentedbyCENTUM,atoken-passingsystemanddualbushavebeendeveloped.Thefollowingaretheconceptsofsuchcommu-nication:Domain641.GuaranteeofhighrateofoperationWorkToguaranteeahighrateofoperationbymakingthehardwareStationredundant,suchasusingadualcable,andestablishingswitchingICS:InformationCommandStationEthernetlogicACG:ComputerGateway2.GuaranteeofreliabilityICSICSDomain1Toguaranteehighreliabilitybymakingself-diagnosisaregu-ACGlarfunctionforthecommunicationframeandhardwareofeachVnetnodesoastodetectfailuresatanearlystage3.Guaranteeofreal-timetrendFCSFCSToguaranteearapidresponsetotheacquisitionandsettingofBCV-VBCV-HprocessdatanecessaryforplantoperationsFCS:FieldControlStationBCV:BusConverterVnetHF-Bus*1Development&EngineeringDepartmentI,DCSCenter,FCSDomain2Domain17EFCDProcessControlEquipmentDivision*2Development&EngineeringDepartmentIII,DCSCenter,CENTUMCSCENTUM-XLProcessControlEquipmentDivision*3Development&EngineeringDepartmentII,DCSCenter,ProcessControlEquipmentDivisionFigure1ExampleofSystemArchitectureCommunicationbusV-netfortheCENTUMCS215.Correspondencetosystemexpansion2.OpeninterfaceTomaintainareal-timeprocessingabilitywithanincreaseProcessdataareaccessedthroughthelogicalname(tagnamebothincommunicationand