BGS2T AT Command Set
17.5 AT^SCTM
BGS2T_ATC_V01.301 Page 512 of 554 1/31/12
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17.5 AT^SCTM Critical Operating Temperature Monitoring
AT^SCTM allows to monitor the operating temperature range of the BGS2T device. Refer to "BGS2T Hardware
Interface Description" [2] for specifications on critical temperature ranges.
AT^SCTM write command controls the presentation of URCs to report critical operating temperature limits.
Use parameter <UrcMode> to enable (1) and disable (0) URC presentation.
Important: Even if setting is <UrcMode>=0 URC presentation is enabled during the two minute guard period
after the module was switched on. After expiry of the two minute guard period, the presentation will be disabled,
i.e. no URCs with alert levels "1" or ''-1" will be generated. During this period BGS2T will not switch off, even if
the critical temperature limit is exceeded. This allows the user to set up emergency calls before BGS2T switches
off. For details refer to Section 17.5.1, Deferred shutdown.
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.
Level "2" or "-2" URCs are followed by immediate shutdown, except in cases described in Section 17.5.1,
Deferred 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. URCs indicating alert levels "1" or "-1" are intended to enable
the user to take appropriate precautions, such as protect BGS2T from exposure to extreme conditions, or save
or back up data etc.
AT^SCTM read command returns:
• The URC presentation mode.
• Information about the current temperature range of the BGS2T device.
• The board temperature (in degree Celsius) if parameter <tempCtrl>=1.
Syntax
Test Command
AT^SCTM=?
Response(s)
^SCTM:(list of supported <UrcMode>s)[, (list of supported <tempCtrl>s)]
OK
Read Command
AT^SCTM?
Response(s)
^SCTM: <UrcMode>, <UrcCause>[, <temp>]
OK
ERROR
+CME ERROR: <err>
Write Command
AT^SCTM=<UrcMode>[, <tempCtrl>]
Response(s)
OK
ERROR
+CME ERROR: <err>
PIN ASC0 MUX1 MUX2 MUX3 Last
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