Md25

Features•Supportsdataratesupto500Kbits/sec.•Supportstwoorthree16bitdatawords.•Fulldatamappingallowsanypolledorcyclicdatawordtocontrolorsourcefromanydriveparameters.•“Foreground”and“Background”datatransferratesforpolleddata,wherebackgrounddataintransmittedeveryNforegroundcycles.•Explicit(ornon-cyclic)datachannelallowsthemastercontrollertoaccessanydriveparmeter.•Statuswordprovidesstatusbitsabout15drivefunctions,e.g.drivehealthy,driverunning,atspeed,etc.•ControlwordallowsENABLE,RUN,andDIRECTIONsignals,plusreferenceselectionanduserbitparameterstobetransmittedinonepolleddataword.•“BusOffError”automaticallytripsthedriveifthenetworkislostduringnodetransmission.•NetworkLossdetectionwilltripthedrive(ifenabled)ifthenetworkconnectionislost.ThenetworkscannerandMD25willre-establishthepolledorcyclicdataconnectionwhenthenetworklinkisrestored.•FullycompatiblewiththeUnidriveDeviceNetinterface,UD77.•GenericEDSfilesareavailableforusewiththeDeviceNetManagersoftwarepackagefromAllenBradley.TheseprovideaccessviaDeviceNettothemostcommonlyuseddriveparameters,and(Continuedonpage2)OverviewDeviceNetisahighspeedcommunicationsnetworkprotocolthatusestheControllerAreaNetwork(CAN)hardwarelayerandsignalling.DeviceNetnetworksrequireamastercontroller,usuallyaPLCScannerorPCcard,withallnetworkcommunicationscontrolledbythemasterdevice.TheDeviceNetinterfaceforMentorII(MD25)isaslavenodeonly,anddoesnotsupport“peer-to-peer”or“slave-to-slave”communications.Dataratesfrom125Kbits/secupto500Kbits/secaresupported.TheMD25supportspolleddatawithaminimum“interscandelay”of5ms,andcyclicdatawithaminimum“heartbeatperiod”of50ms.Either4or6databytescanbetransmittedwitheachtypeofconnection.Explicitdataisnon-cyclicdata,andcanbecontrolledbythecontrollingprograminthemasterdevice.A“NetworkLoss”trip(ifenabled)willautomaticallytripthedriveifadatatime-outoccurs.IftheCAN“BusOff”errorisdetected,thedriveisautomaticallytripped.An80C32processorisusedtoservicetheCANcontroller,andthiscommunicateswiththeMentorIIusingadual-portRAMinterface.TheMD25hasfullconformancecertificationfromtheOpenDeviceNetVendorsAssociation.Detailsavailableonrequest.MD25DeviceNetInterfaceforMentorIISSPD-3101-0121(R2)networkconfigurationparameters.TheyareavailablefromtheControlTechniquesWebSite.•EDSfilescanbecompiledthatcontainthefullparametersetforanyconfigurationofUnidrive,(Continuedfrompage1)usingtheAdvancedEDSFileCompiler.ThissoftwareprogramissuppliedwiththeDPLToolkit,andisalsoavailablefromtheControlTechniquesWebSite.SpecificationsNetwork•CANopticallyisolatedphysicallayer•Dataratesfrom125Kbits/secto500Kbits/sec•Upto500mnetworklengthat125Kbits/sec•Upto100mnetworklengthat500Kbits/sec•Upto64nodesonasinglenetwork•Upto6databytespernodeEnvironment•AmbientTemperature:-5°Cto+50°C•StorageTemperature:-40°Cto+50°C•Weight:•MaximumAltitude:4000m•Humidity:+5%to+95%at40°C,non-condensingTrunkCableSpecification•2twistedpairswithindividualandoverallshield•NominalImpedance:120Ω•RecommendedCable:Belden3082ADropCableSpecification•2twistedpairswithindividualandoverallshield•NominalImpedance:120Ω•RecommendedCable:Belden3084ARelatedProductsTheitemslistedbelowarealsoavailable-contactyourlocalControlTechniquesDriveCentre,quotinganypartnumbersordescriptiongivenbelowfordetailsorordering.•UD77DeviceNetInterfaceforUnidrive•DeviceNetUser’sGuide0447-0034•GenericEDSfileforMentorII•AdvancedEDSFileCompilerVisittheControlTechniquesWebSiteat