AT Command Set
MC35_ATC_01_V05.00 Page 190 of 256 15.07.2002
This chapter is only applicable to MC35, it is not intended for MC3 5 Terminal.
Responses returned by the AT^SBC command vary with the operating mode of the ME:
Normal mode: ME is switched on by Ignition pin and running the SLEEP, IDLE,
TALK or DATA mode. Charger is not connected. AT^SBC can be
used to query the battery capacity and the power consumption of
ME and application (if value of application was specified before as
<current>).
Normal mode + charging: Allows charging while ME is switched on by Ignition pin and ru nning
the SLEEP, IDLE, TALK or DATA mode. AT^SBC returns charger
status and power consumption of ME / application. Battery capacity
is not available.
Charge-only mode: Allows charging while ME is detached from GSM network. When
started, the mode is indicated by the URC "^SYSSTART CHARGE-
ONLY MODE". AT^SBC returns charger status and power consum p-
tion of ME / application. Percentage of battery capacity is not avail-
able. In Charge-only mode a limited number of AT commands is ac-
cessible (see Table 11). There are several ways to activate the
Charge-only mode:
a) from Power Down m ode: Connect charger while ME was powered
down with AT^SMSO
b) fr om Normal mode: Connect charger, then enter AT^SMSO.
Alarm mode: No charging functionality, i.e. charging does not start even though
the charger connects to the POWER lines. Battery parameters are
not available.
Charging begins once the charger connects to the POWER pins of t he ZIF connector (except for the
Alarm mode). Please refer to the [1] for details on the charging process.
Test command
AT^SBC=?
Response
^SBC: (list of supported <bcs>s),(list of supported <bcl>s),<mpc> m odule power
consumption
Defined values
<bcs> 0 No charging adapter is connected
1 Charging adapter is connected
2 Charging adapter is connected, charging in progress
3 Charging adapter is connected, charging has finished
4 Charging error, charging is interrupted
5 False charging temperature, charging is interrupted while
temperature is beyond allowed range
<bcl> Battery capacity
0, 20, 40, 60, 80, 100 percent of remaining capacity (6 steps)
0 indicates tha t either the battery is exhausted or the capacity value
is not available
<mpc> Average power consum ption:
Value (0...5000) of average power consumption (mean value over a
couple of seconds) in mA. See read and write command for details.