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For an operational GPRS connection, this level must be at least 20. It is strongly disadvised to use
the connection GPRS with a level lower than 12.
• Modem status: The message may be:
• Standby: modem not connected.
• Initialization: modem establishing a connection.
• Connected: modem connected.
10.3 Detecting Power Connection
The WebdynModbus constantly monitors the status of its 24 V power supply. This enables it to detect
a prolonged power cut, and so warn the operator by uploading an alarm le to the FTP server. An alarm
indicating that power has been restored is also uploaded.
10.3.1 Syntax of the Alarm File Name
The name of the alarm le uploaded to the FTP server complies with the following format:
prexID_AL_YYMMDD_hhmmss.csv.gz
Where:
prexID: gateway identier.
YYMMDD_hhmmss: timestamp for the archive in the format “year-month-
day-hour-minute-second”.
10.3.2 Format of Alarms
The uploaded CSV alarm le may contain several alarms from different sources. The entry for a 24 V
power loss alarm has the following format:
date-time;GATEWAY;info
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