Toro Groundmaster Series - CAN bus Communications

CANbusCommunications
ThemachinecontrollerscommunicatewitheachotheronaControllerArea
Network(CAN)bussystem.Usingthisnetworkallowsfullintegrationofallthe
differentelectricalcomponentsofthemachine,allowingthemtooperatetogether
asone.TheCANbussystemreducesthenumberofelectricalcomponentsand
connectionsusedonthemachineandallowsthenumberofwiresinthewire
harnesstobesignicantlyreduced.
Formodel31900,31901,31907and31909machines,theTDMcontrolleristhe
onlycontrollerontheCANbuspresently.Formodel31902and31903machines,
theTDMcontrollerandtheYanmarengineECUaretheonlycontrollersonthe
CANbuspresently.Additionalcontrollers(forattachments)maybeadded
totheCANbusinthefuturethroughtheexpansionportconnectorand/orthe
telematicsconnector.
EachofthecomponentsthatiscontrolledbytheCANbuslinkonlyneedsfour
(4)wirestooperateandcommunicatetothesystem:CANHigh,CANLow,
powerandground.ThekeyswitchneedstobeintheRUNorSTARTposition
forthecomponentsonthenetworktobeactivated.
Twospeciallydesigned,twistedwiresformtheCANbus.Thesewiresprovidethe
datapathwaysbetweenthecomponentsonthenetwork.Theengineeringterm
forthesecablesareCANHighandCANLow.TheCANbuswiresarered/white
(CAN-High)andblack/white(CANLow).AteachendoftheCANbusisa120
ohmterminationresistor;refertoCANbusT erminatorResistors(page6–56).
g305596
Figure76
1.Operator’sconsole3.Cover
2.DIAGconnector
TheToroDIAGelectroniccontroldiagnosticsservicesystemisavailableto
AuthorizedT oroDistributorstosupportmachinefaultdiagnosisandmaintenance
servicesofthemachineelectricalcontroldevices.TheToroDIAGconnectoris
locatedattherearoftheoperator’sconsole.
Groundsmaster
®
3200,3300and3310
Page6–5
ElectricalSystem:GeneralInformation
19240SLRevA