Understand the alarm indicators

Name

Icon

Priority Level

Description

Manual Override

1

This indicator appears at the right side of a line of data to show that you have placed the point into manual override mode and has possibly entered a value to override the point’s normal data source.

You can manually override telemetry or calculated points to prevent the overridden points from being updated via telemetry or calculation.

Note: The manual override indicator is never displayed opposite manual points. These points are always in the manual mode and cannot be overridden.

Stale

3

This symbol is the stale data indicator. It appears at the left-hand side of a line of data to indicate that it is old or stale data. This represents the last valid condition of a correct poll.

If the point in question is a telemetry point, the presence of this indicator means that either communication with the Remote Terminal Unit (RTU) has been lost, polling is improper, or the point has not been polled since system failover or start-up. The indicator appears after a preset number of failed poll attempts.

If the point is a calculated point, the presence of this indicator means the point has not been calculated since system failover or start-up.

Error

4

When this indicator appears for telemetry points, it indicates that the value has exceeded instrument limits. When this symbol appears against a calculated point, it indicates either the occurrence of an Application Calculation Engine (ACE) error, such as divide-by-zero, or that an application has declared the value to be suspect or erroneous.

Offscan

2

This indicator appears at the right-hand side of a line of data to indicate that the point is off-scan and has been removed from normal polling. For telemetry points (RTUs), this means that the point is not updated with instrument data and contains the last-scanned value.

Note: This indicator will not appear for calculated or manual entry points.

Abnormal

---

The abnormal indicators are color coded to display the severity of the alarm. For more information, refer to Alarm Indicators table listed above.

Alarm Inhibited

5

This indicator appears against a point as an indication that alarming has been inhibited for that point, either by you or by the Administrator. Its meaning is the same in all cases, whether for telemetry, calculated, or manual entry points.