Specifications

AT Command Set
MC35_ATC_01_V05.00 Page 196 of 256 15.07.2002
8.9 AT^SCTM Set critical operating temperature presentation mode or
query temperature
Use this command to monitor the temperature range of the module and the battery. The write com-
mand enables or disables the presentation of URCs to report critical temperature limits.
CAUTION: During the first 15 seconds after start-up, the module operates in an automatic report
mode: URCs can be always displayed regardless of the selected mode <n>.
Test command
AT^SCTM=?
Response
^SCTM: (list of supported <n>s) OK
Parameter
See write command
Read command
AT^SCTM?
Response
TA returns the URC presentation mode and information about the current tem-
perature range of the module. Please note that the Read command does not indi-
cate the temperature range of the battery. The battery temperature can only be
reported by an Unsolicited Result Code.
^SCTM: <n>, <m> OK
Parameters
<n> 0 Presentation of URCs is disabled (except for <m> equal to –2 or +2).
1 Presentation of URCs is enabled.
<m> -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)
Write command
AT^SCTM=<n>
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.
Response
OK
Parameters
<n> 0 Suppress URCs (except for <m> equal to –2 or +2)
1 Enable presentation of URCs.
Please see notes below for further details.
Unsolicited result code
URCs will be automatically sent to the TA when the temperature reaches or ex-
ceeds the critical level, or when it is back to normal.
^SCTM_A: <m> for battery temperature
^SCTM_B: <m> for module (board) temperature