Aggregated Alarm Display in AVEVA OMI Navigation

The Alarms page is used to configure which aggregated alarms are displayed on a Galaxy-wide basis. You can set whether or not display alarm information in individual AVEVA OMI ViewApps by enabling/disabling the ShowAlarms attribute. AVEVA OMI ViewApps display alarm indicators and alarm counts for aggregated alarms on NavigationApp controls (NavigationTree and BreadcrumbControl), if the ShowAlarms attribute is enabled in the ViewApp. To enable this attribute, select the Show Alarms option when you configure the control in the Layout Editor.

Note: Alarm indicators ("adorners") used in AVEVA OMI navigation are FrameworkElement Adorners, part of the Microsoft .NET Framework used in creating and configuring apps for AVEVA OMI ViewApps.

The opacity of the alarm indicator shows if the alarm is on the selected navigation node or on a contained object. When enabled, the following alarm severities and alarm statuses are shown:

• If the color of the alarm indicator is opaque (solid), the alarm is on the selected (local) object. If enabled, the severity (S1 to S4) and status of the alarm (UNACK_ALM, UNACK_RTN, ACK_ALM) is shown graphically, along with a count for each alarm severity that has been enabled.

• If the color of the alarm indicator has some transparency, the alarm is on a contained object.

• The color of the blinking line under the object name shows the highest-severity (most urgent) alarm.

• An indicator on the NavigationTree or BreadCrumbControl shows if the data quality of the object is bad. Bad quality may result if communication has been lost with the object.

You can also determine which navigation node or asset contains the alarm by selecting the alarm icon. This displays a tooltip that indicates the node(s) or asset(s) sending the alarm(s).

Set Alarm adorner options on the Alarms page (Galaxy > Configure > Galaxy > Alarms) to configure which aggregated alarms are displayed on NavigationApp controls and any custom apps that subscribe to the aggregated alarm count during run time.

The following Alarm Adorner Options are set through the dialog. The corresponding attribute settings are propagated to run-time nodes (all attribute names are prefixed by MyViewApp.Alarms). For additional information about these attributes, see About Alarm Adorner Attributes.

Alarm Indicator Appearance

The appearance of alarm indicators is configured through the Alarm Element tab of the Galaxy Style page, and uses the symbols that are shown on the Alarms page.