Siemens MC55 AT manual Responses returned by read command

Notes

•If multiplex mode (AT+CMUX) is active, any virtual channel can be used for entering the read or write com- mand. The undervoltage URC will be issued simultaneously on all three channels.

•The URC "^SYSSTART CHARGE ONLY MODE" is indicated automatically when the module enters this mode (except when autobauding is active). Unlike the undervoltage URC, it cannot be disabled or enabled by the TE.

18.3.1Responses returned by read command

Responses returned by the AT^SBC read command vary with the operating mode of the MC55:

•Normal mode: MC55 is switched on by Ignition pin and running in SLEEP, IDLE, TALK or DATA mode. Charger is not connected. The AT^SBC read command indicates the battery capacity and the current con- sumption of the MC55 module and the application (if value of application was specified before as <cur- rent>).

•Normal mode + charging: Allows charging while MC55 is switched on by Ignition pin and running in SLEEP, IDLE, TALK or DATA mode. The AT^SBC read command returns only charger status and current consump- tion of the MC55 module and the application. Percentage of battery capacity is not available.

•CHARGE ONLY mode: Allows charging while MC55 is detached from GSM network. When started, the mode is indicated by the URC "^SYSSTART CHARGE ONLY MODE". The AT^SBC read command returns only the charger status and current consumption of the MC55 module and the application. Percentage of battery capacity is not available. In CHARGE ONLY mode a limited number of AT commands is accessible (see Appendix). There are several ways to activate the CHARGE ONLY mode:

-from POWER DOWN mode: Connect charger while the MC55 was powered down with AT^SMSO

-from Normal mode: Connect charger, then enter AT^SMSO.

•Alarm mode: The battery can be charged while the MC55 stays in Alarm mode, but the AT^SBC read com- mand returns only charger status and current consumption of the MC55 module and the application. Percent- age of battery capacity is not available.

MC55_ATC_V04.00	Page 432 of 475	3/17/06
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