Chapter 5: Using the Web Interface
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3. If you selected a Line, Outlet, or Circuit Breaker segment, indicate the
specific line, outlet, or circuit breaker using the new drop-down list that
appears.
4. Select an alert event that occurs to the specified segment. The list of
events depends on the selected segment.
5. Pick an event direction. This describes how a numeric sensor's
threshold must be exceeded or how a discrete sensor changes its
state to trigger the alert.
Assert & Deassert: causes the alert to trigger when the numeric
sensor's measured value moves past a threshold in either
direction or when the discrete sensor's state change occurs.
Assert: causes this alert to trigger only when the numeric sensor's
measured value moves past the threshold (above an upper
threshold or below a lower threshold), or when the discrete sensor
changes its state from
Normal
to
Alarmed
. This means the status
of the described event transits from FALSE to TRUE.
Deassert: causes this alert to trigger only when the numeric
sensor's measured value returns towards "normal" from beyond
the threshold (below an upper threshold or above a lower
threshold), or when the discrete sensor changes its state from
Alarmed
to
Normal
. This means the status of the described event
transits from TRUE to FALSE.
For example, if you select "Environmental Temperature above upper
critical threshold" and set the event direction to Assert & Deassert, the
selected policy executes when the temperature of the cabinet exceeds
the critical threshold. When the environment cools and the
temperature drops below the critical threshold, the policy executes
again.
6. Select a policy to execute from the Policy drop-down list. This list
includes all of the alert policies created in the Alert Policy Editor.
Note: If the policy involves the "Current Outlet" destination, make sure
you select "Outlet" as the event, or the "Current Outlet" destination
has no effect. See
Creating Alert Policies
(on page 136). For the
outlet current threshold events, avoid choosing an alert policy that
cycles the power to "Current Outlet" because the "cycle current outlet"
destination may generate the infinite output cycle loop.
7. Click
Add.
Added alerts are now tracked by the Dominion PX. When an alert's event
conditions are met, the associated policy executes.
Note: If Environmental Temperature or Environmental Humidity is
selected as part of the Event, an alert event is created for each
Temperature or Humidity sensor. These event alerts can be deleted so
that only the ones you want are present.