35
W&T
IP-Watcher 2x2 Digital PoE
For an alarm to be triggered the trigger signal must be present
for at least 25ms. The response of the IP-Watcher follows...
.
...immediately when an output is switched.
.
...every 10s for mail alarms.
.
...once a second for all other network-based message types.
Since generating messages can be done considerably faster
than they can be sent, there are rules which regulate messages:
.
If the system has received an acknowledgment (ACK) for an
acknowledgeable alarm, this alarm cycle is considered to be
finished. Messages not yet sent continue to be delivered.
.
If an acknowledged alarm whose messages are not yet
completely sent is triggered again, all messages for the old
alarm cycle are deleted. Activation starts a new run which
should not be mixed with messages from past and
processed triggers..
.
If the triggering of an alarm, the trigger clear and the
acknowledgement takes place faster than the device can
detect these status changes, an ordered message sequence
is no longer possible. If the acknowledgement is not
detected due to too high a switching frequency and the
alarm is then triggered again, this status is considered to
be a re-triggering of the alarm.
If delays occur when sending messages, for example due
1
to wait times in opening the connection, these delays
also affect the as yet unsent messages.
4.1 IP Watch List
The trigger condition for an alarm is always the non-response
of a network component. Before the alarms can be configured
in detail, the network components in question must be added
to the
IP Watch List
. This centralized list is later used to assign
the components to the individual alarms.
IP addresses and host names are managed on the page
