13 Overview: Alarm and action management
The OTT netDL is capable of automatically generating an alarm or performing
an action, if certain events occur. These alarms or actions may be triggered by
different conditions:
Threshold of a limit: A predefined value is underrun or exceeded.
Gradient limit: Fast rise or drop of a defined value within a certain period
of time.
Change in status: The input signal at a status input has changed.
The following actions and alarm messages are available:
Control external devices through the power supply switching contact
(switched U
b
at
).
Send an SMS message containing an alarm message. If the cellular radio
network operators provide respective services, the SMS messages may be
sent as an e-mail or telefax as well.
Send an alarm message via OTT protocol to the OTT Hydras 3 application
software.
Send an alarm message to an HTTP/HTTPS/FTP/SMTP server.
Temporarily change the transmitting interval of a configured data transfer.
For this, there are five additional time intervals available that are controlled
by limits.
(Temporarily) change the sampling and storage interval of a channel.
Establish the dial-up connection and start the voice announcer (alarm message).
If required, individual actions may be grouped. Thus, an event may trigger several
actions/alarms.
For detailed information on the alarm and action management, refer to the online
help of the operating program.
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