National Instruments CAN 372139B-01 - Manual (Page 30)

Chapter 5 Automotive Diagnostic Command Set API for LabVIEW
Automotive Diagnostic Command Set User Manual 5-4 ni.com
OBD Request Powertrain Freeze Frame Data.vi Executes the OBD Request Powertrain
Freeze Frame Data service. Reads a data
record from the ECU that has been stored
while a Diagnostic Trouble Code occurred.
OBD Request Supported PIDs.vi Executes the OBD Request Current
Powertrain Diagnostic Data service to
retrieve the valid PID values for this service.
OBD Request Vehicle Information.vi Executes the OBD Request Vehicle
Information service. Reads a set of
information data from the ECU.
Open Diagnostic.vi Opens a diagnostic session on a CAN port.
Communication to the ECU is not yet
started.
ReadDataByLocalIdentifier.vi Executes the ReadDataByLocalIdentifier
service. Reads a data record from the ECU.
ReadDTCByStatus.vi Executes the
ReadDiagnosticTroubleCodesByStatus
service. Reads selected Diagnostic Trouble
Codes (DTCs).
ReadECUIdentification.vi Executes the ReadECUIdentification
service. Returns ECU identification data
from the ECU.
ReadMemoryByAddress.vi Executes the ReadMemoryByAddress
service. Reads data from the ECU memory.
ReadStatusOfDTC.vi Executes the
ReadStatusOfDiagnosticTroubleCodes
service. Reads selected Diagnostic Trouble
Codes (DTCs).
RequestRoutineResultsByLocalIdentifier.vi Executes the
RequestRoutineResultsByLocalIdentifier
service. Returns results from a routine on the
ECU.
RequestSeed.vi Executes the SecurityAccess service to
retrieve a seed from the ECU.
Table 5-1. Automotive Diagnostic Command Set API VIs for LabVIEW (Continued)
Function Purpose