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1 responses returned by read command, Responses returned by read command – Siemens Brodersen MC55 AT User Manual

Page 432

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MC55_ATC_V04.00

Page 432 of 475

3/17/06

Confidential / Released

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.

18.3.1

Responses 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

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.