3.4.7 Issuing notifications when the suppression of repeated-event display continues
You can specify settings for Notifications for when suppression continues so as to check whether the suppression of repeated-event display continues at intervals of a specified time (number of seconds) or a specified number of events. When display suppression continues, a JP1 event can be issued to notify of the continuation of display suppression or display suppression can be terminated.
Notifications for when suppression continues is a setting item for repeated event conditions, which must be set for individual repeated event conditions. This subsection describes when to check whether display suppression continues.
Note that, if checking whether display suppression occurs concurrently with ending display suppression, ending display suppression takes priority.
- Important note
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For illustrative purposes, given here is an example of checking whether the suppression of repeated-event display continues at short intervals. Note that, if you specify the checking (of whether the suppression of repeated-event display continues) at short intervals during actual system operation, a large number of notification events might be issued as a result of checking. Therefore, specify an appropriate interval of checking according to the system environment.
You can select time (number of seconds) or number of events as the unit of checking interval. The following describes the checking operations with respective units of interval selected:
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Checking at intervals of specified time (number of seconds)
The first checking is performed when the condition shown below is satisfied by two repeated events that meet the same repeated event condition:
Arrived-time-of-the-latest-repeated-event - arrival-time-of-the-repeated-start-event
specified-number-of-seconds
For the second and subsequent checkings, in the above condition, the reference event (repeated start event) is substituted by the event that triggered the preceding checking.
The specifiable number of seconds ranges from 1 to 86,400 seconds.
When you specify settings to check whether the suppression of repeated event continues at intervals of 3 seconds, the checking is performed as shown in the figure below. Note that, in this example, the end monitoring period is set to 3 seconds.
Figure 3‒45: Checking whether suppression continues at intervals of specified time (number of seconds) -
Checking at intervals of a specified number of events
The first checking is performed when the specified number of events is exceeded by the total number of the repeated events meeting the same repeated event condition. The repeated events are counted from the repeated start event up to the latest repeated event. For the second and subsequent checkings, in the above condition, the reference event (repeated start event) is substituted by the event that triggered the preceding checking.
The specifiable number of events ranges from 1 to 1,000,000.
When you specify settings to check whether the suppression of repeated event continues at intervals of 3 events, the checking is performed as shown in the figure below. Note that, in this example, the end monitoring period is set to 3 seconds.
Figure 3‒46: Checking whether suppression continues at intervals of specified number of events
- Organization of this subsection
(1) Terminating suppression of repeated-event display
You can terminate the suppression of repeated-event display that has continued. Terminating display suppression enables you to consolidate repeated events in appropriate groups. Terminating display suppression also prevents the events being consolidated from being hidden among other events because, after display suppression is terminated, the event list periodically displays the events being consolidated. You cannot specify terminating display suppression and issuing an event to notify of the continuation of display suppression together in a repeated event condition.
After display suppression is terminated, the suppression of repeated-event display starts newly, assuming that the repeated start event is the event that triggered the preceding checking on whether display suppression continues.
When you specify settings to check whether the suppression of repeated event continues at intervals of 3 events and terminate the suppression if it continues, the checking is performed as shown in the figure below.
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Note that an event to notify that suppression will be terminated (event ID: 00003F60) can be issued to notify that display suppression is terminated. For details, see 3.4.8 Issuing events associated with the suppression of repeated-event display.
- Reference note
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When you specify repeated events other than repeated start events as action-suppressed events for a suppression item in the repeated event condition, an automated action will be executed only once every time display suppression is terminated. For details about the suppression of the execution of automated actions, see 3.5.8 Suppressing the execution of automated actions triggered by a large number of events.
(2) Notifying of the continuation of the suppression of repeated-event display
An event to notify that suppression will continue (event ID: 00003F65) can be issued to notify that the suppression of repeated-event display continues. You cannot specify terminating display suppression and issuing an event to notify of the continuation of display suppression together in a repeated event condition. For details, see 3.4.8 Issuing events associated with the suppression of repeated-event display.