Alarm Tag Type Properties: Actions Tab
The Actions tab for the alarm tag properties folder enables you to select an alarm priority tag whose of properties will be used to indicate the category of alarm to be triggered by this alarm tag (see Alarm Priority Tags). Other properties available on the Actions tab allow you to disable the alarm in the event that alarm conditions could be triggered due to routine equipment maintenance or another interruption in communications of which you are aware. The sound to be used for the alarm siren for this alarm can also be indicated here.
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The Disable Alarm field enables you to disable or enable this alarm tag, using a 0 (not disabled) or 1 (disabled), an expression or, the value of a second tag. This feature is typically used in situations such as when routine maintenance is being performed. In such a situation, an alarm can be disabled until the maintenance is complete and communications are reestablished, thus avoiding false alarms.
The Trip checkbox enables you to indicate whether this alarm is to function as a trip alarm or a level alarm, as described in the introduction to this tag.
The Priority field enables you to indicate the priority of this alarm by selecting an alarm priority tag. The built-in alarm priority tags have numbers from 0 to 4 with the following meanings:
• 0 (event) indicates that the alarm will not occur, but its value may still be used as a setpoint by other tags;
• 1 (critical) indicates the highest priority alarm;
• 2 (high) indicates a regular priority alarm;
• 3 (warning) indicates a warning; and
• 4 (notice) indicates a notice or informational event.
You may also create your own alarm priority tags.
The Sound field enables you to identify what audible warning will be played when this alarm is triggered. The Sound field can be set to a 0, a 1, or to the name of a .WAV sound file to be played.
If the Sound field is set to 0, no sound will be played when this alarm is triggered.
If the Sound field is set to 1, the sound configured in the associated alarm priority tag will be played (see Alarm Priority Tags).
If the Sound field identifies the name of a .WAV sound file, it will override any alarm sound configured for the associated alarm priority tag. When specifying a sound file, you must enter its name and extension (e.g. MySound.wav). The specified sound file must be a .WAV file, and must be stored in the application directory. If the specified sound file is not found, the alarm will revert to using tones as specified in the associated alarm priority tag.
If the configuration variable AlarmPopupsEnable is set to 1, then Popup Enable will result in a popup dialog being displayed whenever the alarm is triggered. It is strongly suggested that this feature be used sparingly.
The popup will display the names of all active alarms for which Popup Enable has been set. As alarms are acknowledged, they will be removed from the popup. Should all the alarms be acknowledged or go inactive while the popup is displayed, it will close. You may close the popup at any time by selecting the Close button. The popup will not be displayed again until a fresh alarm event occurs.
The popup does not provide a way to acknowledge the alarm – its purpose is solely to provide extra notification to the operator of current, un-acknowledged alarms.