VEGA Phoenix PSI Data Fax Modem - Manual (Page 76)

PSI-DATA/FAX-MODEM/RS232
5-6 692302
Alarm at the Input:
In the event of an alarm at input 1, the alarm message "INPUT 1 ACTIVE" is first
sent to the local RS-232 interface. The configured messages are then sent with the
following priority:
1. Set output
2. SMS message
3. Fax message
The "ALR" LED starts flashing and does not enter the ON state until all the alarm
jobs have been processed. The PSI-DATA/FAX-MODEM/RS232 modem attempts
to send each message (SMS or fax) up to four times.
If this is not possible, an alarm error is generated and the "ERR" LED lights up. The
"ALR" LED remains lit until the alarm is reset with the AT*AR<CR> command, by
pressing the button on the modem or by an SMS.
The modem cannot be addressed at the RS-232 interface while alarm messages
are being sent.
CTS (Clear To Send) is not active during this time. In the event of an AT from the
control system there is no confirmation.