4.4.8 Issuing events associated with the suppression of repeated-event display

When the suppression of repeated-event display is used, various notifications can be issued. A suppression start event (event ID: 00003F58) can be issued to notify of the start of suppression, and a suppression end event (event ID: 00003F59) can be issued to notify of the end of suppression. After the check for whether the suppression of repeated-event display continues, an event to notify that suppression will continue (event ID: 00003F65) can be issued when display suppression continues. Also, an event to notify that suppression will be terminated (event ID: 00003F60) can be issued when display is terminated.

Specify whether to issue the individual events associated with the suppression of repeated-event display on the Options page of the Repeated Event Condition Settings window.

Figure 4-50 shows how the suppression start and suppression end events are issued. Figure 4-51 shows how the event to notify that suppression will continue and the event to notify that suppression will be terminated are issued. Note that the event to notify that suppression will continue and the event to notify that suppression will be terminated are issued in the same timing.

Figure 4‒50: Issuing events (suppression start and suppression end events) associated with the suppression of repeated-event display

The following describes how the suppression start and suppression end events are issued in sequence of the numbers in the figure (the numbers in the figure correspond to the numbers below).

The suppression start event is issued to notify of the start of suppression at the same time as the reception of a repeated start event from the event service.
The suppression end event is issued at the same time as the reception of an event (from the event service) whose arrival time exceeds the arrival time of the latest repeated event by at least the end monitoring period. The suppression end event notifies the end of suppression.

No suppression end event is issued when display suppression ends because JP1/IM - Manager is stopped or restarted.

Figure 4‒51: Issuing events (to notify that suppression will continue and to notify that suppression will be terminated) associated with the suppression of repeated-event display

The following describes how the event to notify that suppression will continue and the event to notify that suppression will be terminated are issued. The description follows the numbers in the figure (the numbers in the figure correspond to the numbers below). Assume that repeated event condition α specifying whether display suppression continues is to be checked at intervals of three events.

The manager has acquired three repeated events that meet repeated event condition α. Therefore, the manager determines that display suppression should continue when it acquires the next repeated event that meets repeated event condition α.
Because display suppression was determined to continue, the event to notify that suppression will continue or the event to notify that suppression will be terminated is issued according to the settings for Processing for when suppression continues.
The manager has acquired three repeated events (counted from the event that triggered the checking of the continuation of display suppression) that meet repeated event condition α. Therefore, the manager determines display suppression should continue when it acquires the next repeated event that meets repeated event condition α.
The manager has not acquired any repeated event that meets repeated event condition α within the end monitoring period. Therefore, neither suppression of the event to notify that suppression will continue, nor the event to notify that suppression will be terminated is issued.

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