B&B Electronics LDVDSV2-S-P9D - Manual - Manual (Page 10)

OBDII Streamer Command & Response
V2.11
Page 10/49
Update Mode
On initial power up all update modes are disabled. In order to use any of the update
modes listed below they must be configured and enabled using the
SET_UPDATE_MODE and CHANGE_PARAMETER_THRESHOLD commands.
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Time Based
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Threshold Based
In order to receive automatic messages based on time or threshold the
CHANGE_PARAMETER_THRESHOLD command must be sent for each parameter.
Enable_Parameters
By default, all supported parameters will be updated from the vehicle. The
Enable_Parameters command can be sent in order to enable updates on only the
supported parameters.
Setting the Enable_Parameters command is desirable in some cases to increase the
parameter update rate. The update rate for each parameter is equal to the total update rate
from the vehicle divided by the number of enabled parameters.
The update rate from the vehicle is fixed and varies from vehicle to vehicle, but will not
exceed 20Hz.