Siemens MC55 manual Sctma m, Sctmb m

MC55 AT Command Set

17.5 AT^SCTM

^SCTM_A: <m>

for battery temperature

URC 2

^SCTM_B: <m>

for module (board) temperature

s

mobile

Command Description

The read command returns the URC presentation mode and information about the current temperature range of the module. Please note that the Read command does not indicate the temperature range of the battery. The battery temperature can only be reported by an Unsolicited Result Code.

Select <n> to enable or disable the presentation of the URCs. Please note that the setting will not be stored upon Power Down, i.e. after restart or reset, the default <n>=0 will be restored. To benefit from the URCs <n>=1 needs to be selected every time you reboot the GSM engine.

Parameter Description

<n>(num)

0(&F)	Presentation of URCs is disabled (except for <m> equal to -2 or +2).
1	Presentation of URCs is enabled.
<m>(num)
-2	Below lowest temperature limit (causes immediate switch-off)
-1	Below low temperature alert limit
0	Normal operating temperature
1	Above upper temperature alert limit
2	Above uppermost temperature limit (causes immediate switch-off)

Notes

•Please refer to the "Hardware Interface Description" for specifications on critical temperature ranges.

•To avoid damage the module will shut down once the critical temperature is exceeded. The procedure is equivalent to the power-down initiated with AT^SMSO.

•URCs indicating the alert level "1" or "-1" are intended to enable the user to take appropriate precautions, such as protect the module or battery from exposure to extreme conditions, or save or back up data etc. The presentation of "1" or "-1" URCs depends on the settings selected with the write command:

If <n>=0: Presentation is enabled for 15 s time after the module was switched on. After 15 s operation, the presentation will be disabled, i.e. no URCs will be generated.

If <n>= 1: Presentation of "1" or "-1" URCs is always enabled.

•Level "2" or "-2" URCs are followed by immediate shutdown. The presentation of these URCs is always enabled, i.e. they will be output even though the factory setting AT^SCTM=0 was never changed.

•If the temperature limit is exceeded while an emergency call is in progress the engine continues to measure the temperature and to deliver alert messages, but deactivates the shutdown functionality. Once the call is terminated full temperature control will be resumed. If the temperature is still out of range ME switches off immediately.

MC55_ATC_V01.05	Page 435 of 469	2/10/04
Confidential / Released