B&B Electronics LDVDSV2-S-P9D - Manual - Manual (Page 7)

OBDII Streamer Command & Response
V2.11
Page 7/49
The following commands will respond normally during startup:
-
READ_MODEL_NUMBER
-
FIRMWARE_VERSION
-
READ_SERIAL
-
UPGRADE_FIRMWARE
When the OBDII Streamer has finished the initialization sequence it will send a
DEVICE_CONFIGURED message.
After this message is received the OBDII Streamer will be ready for communications.
Non-Volatile Storage
Most configuration settings and parameters are stored in non-volatile memory and do not
have to be reconfigured on startup. The following settings and parameters are saved in
non-volatile memory.
Serial Number
BAUD
OEM_ID
Model Number
VIN
Firmware/EEPROM Versions
Vehicle information (OBDII Bus and Available Parameters)
Enabled/Disabled Parameters
Update Modes (Time and Threshold based)
Transferring to a New Vehicle
The OBDII Streamer stores all vehicle information in non-volatile memory. To improve
startup times in the event of a power loss all parameters will be reloaded from memory.
If the OBDII Streamer is removed from one vehicle and installed in another, the OBDII
Streamer must be forced to detect. On startup the previous vehicle’s data will be loaded.
The behavior of an OBDII Streamer will be unpredictable when connected to a vehicle
that is different than the vehicle detected. To force the OBDII Streamer to redetect
vehicle information send the REDETECT_VEHICLE command.
Ignition Detection
The vehicles J1962 diagnostic connector is always powered, even with the vehicle
ignition off. The OBDII Streamer detects the ignition status by analyzing data retrieved
over the OBDII bus. There are two methods used to determine ignition status.
First, the engine speed and vehicle speed are monitored from the vehicle. When engine
speed and vehicle speed are detected as zero for 2 minutes the OBDII Streamer will enter
Standby mode.