Owner's manual


Page68
NAV440UserManual
7430‐0131‐01Rev.F
Table26CalibrationRequest
calibrationRequest Description
0x0009 Beginmagneticalignmentwithoutautomatictermination.
Rotatevehiclethrough>360degreesyawandthensend0x000B
calibrationrequestfortermination.
0x000B
Terminatemagneticalignment.TheunitwillsendaCCrespons
containingthehard‐ironandsoft‐ironvalues.
e
Toaccepttheparameters,storethemusingthewritemagnetic
calibrationcommand.
0x000C
Beginmagneticcalibrationwithautomatictermination.Rotatetheunit
through380degreesinyaw.
oft‐iron
TheunitwillsendaCCresponsecontainingthehard‐ironands
valuesuponcompletionoftheturn.
Toaccepttheparameters,storethemusingthewritemagnetic
calibrationcommand.
0x000E
Writemagneticcalibration.Theunitwillwritetheparametersto
EEPROMandthensendacalibrationresponse.
CalibrateAcknowledgementResponse
Table27Calibrate
Calibrate(‘WC’=0x5743)
Preamble PacketType Length Payload Termination
0x5555 0x5743 0x02 <WCpayload> <CRC(U2)>
T
heunitwillsendthispacketinresponsetoacalibraterequestiftheprocedurecanbeperformedorinitiated.
Table28WCPayload
WCPayloadContents
Byte
ffset
O
Name Format Scaling Units Description
0 calibrationRequest U2 — — Therequestedcalibrationtask
CalibrationCompletedParametersResponse
Table29CalibrateCompleted
CalibrateCompleted(‘CC’=0x4343)
Preamble PacketType Length Payload Termination
0x5555 0x4343 0x08 <CCpayload> <CRC(U2)>