NavCom Sapphire Rev.J - Manual (Page 263)

Sapphire Technical Reference Manual Rev. J
263
2.7 BATSTAT (ASCII)
SF-3050 Sapphire SF-3040
For the SF-3040, this message outputs the current power source (EXT, BAT1, BAT2), the
selected battery (BAT1 or BAT2), the current measured voltage of the external power input, and
the current measured voltage, temperature, and status of the connected batteries.
Example Output:
[BATSTAT] {SRC} {BAT_SEL} {REG_VOLT} {BAT1_VOLT} {BAT1_TEMP} {BAT1_STATUS}
{BAT2_VOLT} {BAT2_TEMP} {BAT2_STATUS}
Where:
{SRC}
– the current power source (EXT, BAT1, or BAT2)
{BAT_SEL}
– battery online (BAT1 or BAT2)
{REG_VOLT} – measured internal regulator input voltage
{BAT1_VOLT} – measured battery 1 voltage
{BAT1_TEMP} – measured battery 1 temperature
{BAT1_STATUS}
– battery 1 status (GOOD, LOW, NONE, SWITCHED)
{BAT2_VOLT} – measured battery 2 voltage
{BAT2_TEMP} – measured battery 1 temperature
{BAT2_STATUS}
– battery 2 status (GOOD, LOW, NONE, SWITCHED)
Code Description
GOOD The measured battery voltage is greater or equal to the
threshold set with the [PWALARMLVL] command.
LOW The measured battery voltage is greater than 0 V, but less
than the threshold voltage set with the [PWALARMLVL]
command. This indicates that the battery should be replaced
or recharged.
NONE
The measured battery voltage is less than 0.9V. This
indicates there is no battery installed in this (BAT1 or BAT2)
position.
SWITCHED
The measured battery voltage is greater than 0 V and was
previously the active selected battery, but has fallen below
the acceptable threshold and has been switched to Standby
mode. Once it is in Standby mode, it must be removed
(status = NONE) and replaced with a battery having a voltage
above the threshold for the status to be changed back to
GOOD. This may require that the battery be removed for at
least 2 seconds to ensure the firmware recognizes the
battery has been removed.

The regulator input voltage (REG_VOLT) will usually be the higher than the EXT
power input, or the selected internal battery. Normally, the EXT power input will
either be vehicle ignition or vehicle battery and will be either > 9V or 0V. However,
there may be a case in which the EXT power input voltage is close to the selected
internal battery voltage. In this case, the regulator power input may be a
combination of power from both the EXT power input and the selected internal
battery.