B&B Electronics LDVDSV2-S-P9D - Manual - Manual (Page 22)

OBDII Streamer Command & Response
V2.11
Page 22/49
0x20 – GET_SUPPORTED_PARAMETERS
Description:
This command will return an identifier byte for each supported parameter.
Only supported parameters will be requested from the vehicle. Parameter values reported
for an unsupported parameter are invalid. Supported parameters are available after the
vehicle has been detected.
Command to Send:
0x01 0x01 0x20 0x00 0x22
Response:
0x01 0x01 0xA0 DL SUPPORTED_PARAMETERS CS
Field Description:
DL
Data Length Byte
SUPPORTED_PARAMETERS
Variable length data field containing one byte for
each supported parameter.
CS
Summation checksum
Example:
TX:
0x01 0x01 0x20 0x00 0x22
RX:
0x01 0x01 0xA0 0x06 0x00 0x02 0x03 0x08 0x09 0x11 0xCF
The supported parameters in this example are:
0x00 – Vehicle Speed
0x02 – Throttle Position
0x03 – Odometer
0x08 – Ignition Status
0x09 – MIL Status
0x11 – Fuel System Monitor