View events on a chart

AVEVA Historian Client Web supports AVEVA Application Server events captured through AVEVA Historian replication or the AVEVA Historian SDK. (For more information on Application Server events, see the AVEVA System Platform documentation.)

When you chart tags with associated events on a line chart, those events will be displayed as part of your line chart.

Note: Alarms and events are not supported for discrete or string tags in AVEVA Historian Client Web. (While you can include alarm and event information for discrete tags using AVEVA Historian Client Trend, it is not currently possible using AVEVA Historian Client Web.)

On a line chart, AVEVA Historian Client Web can display:

Note: Events can appear in the display area for a chart even if no tag data is available.

When the displayed timeframe includes one or more tags with more than 30 events, individual event icons are replaced with Multiple Events icons.

If more than 100 events per tag occur within the displayed timeframe, you'll see no icons Instead, you'll see a toast notification saying there are too many events to display. In this case, you can zoom in to see more events details.

To view event icons when none display

• To see individual event icons, zoom in.

To view details about a single event

• Click the event icon to see its details.

  

  To view details about an alarm state Click anywhere on the highlighted area. The details box includes a color-coded alarm state icon: 1 (Red) = Critical 2 (Yellow) = High 3 (Blue) = Medium 4 (Bright Pink) = Low