Siemens MC55 AT manual Sysstart Alarm Mode +CALA text

Unsolicited Result Codes

URC 1

+CALA: [<text>]

Indicates reminder message.

URC 2

^SYSSTART ALARM MODE +CALA: <text>

Indicates ME wake-up into Alarm mode. If autobauding is active (AT+IPR=0) the line "+CALA" does not appear, but your individual <text> message will be displayed.

Parameter Description

<time>(str)

Format is "yy/MM/dd,hh:mm:ss". For example, 6th of July 2005, 22:10:00 equals to "05/07/06,22:10:00" (see also AT+CCLK).

Note: If <time> equals current date and time or is set to an earlier date, TA returns +CME ERROR: 21.

<n>(num)

Integer type value indicating the array index of the alarm.

The ME allows to set only one alarm at a time. Therefore, the list of supported alarm events indicated by the test command AT+CALA=? is <n>=0. If a second alarm time is set, the previous alarm will be deleted. Therefore, the read command AT+CALA? will always return <n>=0. This is also true if individual settings are made on ASC0 and ASC1 or the various Multiplexer channels, for details see notes below.

<type>(num)

Integer type value indicating the type of the alarm.

0 Alarm indication: text message via serial interface

<text>(str)

String type value indicating the text to be displayed when alarm time is reached; maximum length is <tlength>. By factory default, <text> is undefined.

Note: <text> will be stored to the non-volatile flash memory when the device enters the Power Down mode via AT^SMSO. Once saved, it will be available upon next power-up, until you overwrite it by typing another text. This eliminates the need to enter the full string when setting a fresh alarm.

<text> should not contain characters which are coded differently in ASCII and GSM (e.g. umlauts), see also "Supported character sets" and "GSM alphabet tables".

<tlength>(num)

Integer type value indicating the maximum length of <text>. The maximum length is 16.

Notes

•After the alarm was executed the parameter <time> of AT+CALA will be reset to "00/01/01,00:00:00", but <text> will be preserved as described above.

•If MC55 is totally disconnected from power supply the most recently saved configuration of +CALA: <time>[,<n>[,<type>[,<text>]]] will be presented when MC55 is powered up.

•Each time MC55 is restarted with ignition it takes 2s to re-initialize the RTC and to update the current time. Therefore, it is recommended to wait 2s before using the commands AT+CCLK and AT+CALA (for example 2s after ^SYSSTART has been output).

MC55_ATC_V04.00	Page 428 of 475	3/17/06
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