Cinterion
®
EHS6 AT Command Set
19.4 AT^SCTM
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 455 of 513
19.4 AT^SCTM Critical Operating Temperature Monitoring
AT^SCTM allows to monitor the operating temperature range of the EHS6 device. Refer to "EHS6 Hardware Inter-
face Description" [2] 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.
The 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.
Each time after the EHS6 was switched on there is a guard period of 120 seconds. Until expiry of the guard
timer, automatic thermal shutdown will be deferred and the presentation of all ^SCTM URC types is enabled even
though <UrcMode> equals "0".
URCs indicating alert levels "1" or "-1" are intended to enable the user to take precautions, such as protect the
EHS6 from exposure to extreme conditions, or save or back up data etc. Except during the initial guard period
after startup, the presentation of level "1", "-1" or "0" URCs depends on <UrcMode>.
Level "2" or "-2" URCs are followed by immediate shutdown except during the initial guard period. The presen-
tation of these URCs is always enabled, i.e. they will be output even though <UrcMode> equals "0".
AT^SCTM read command returns:
• The URC presentation mode.
• Information about the current temperature range of the EHS6 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 Last
- + -