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AVEVA Pipeline Operations for Liquids

Understand alarm indicators

  • Last UpdatedApr 24, 2025
  • 4 minute read

The alarm indicators are color-coded to display the severity of the alarm. The alarm severity level and its color are configured by the Administrator.

The table below, Example - Alarm Color Indicators, shows an example of alarm severity levels and their default configured colors.

Depending on your setup, your Alarm Summary and Point Alarm Summary displays may have a different appearance. These priority displays are provided by your Administrator to accommodate your organization’s unique needs.

The Priority Displays, if configured, can be accessed by clicking the Priority Display icon on the Pipeline Control window. The Priority Display icon appears as follows:

Setting the Priority Display in Advanced Database Editor (ADE) defines which window will open when the Priority Display icon is clicked.

For example, if you decided to make the custom display "PROJECT_DISPLAY123" the priority display by typing "PROJECT_DISPLAY123" in the Priority Display field on the Main tab of the pipeline Row Edit in ADE, every time you select Priority Display icon in easy eXtended Operator Station (ezXOS), the display "PROJECT_DISPLAY123" will open.

For more information, refer to AVEVA Enterprise SCADA HMI Controller documentation.

Example – Alarm Color Indicators

Alarm Severity

Icon

Symbol Colour

Critical

Magenta

High

Red

Major

Orange

Medium

Yellow

Low

Green

Minor

Cyan

Note: The severity of alarms may also be indicated by audible alarm messages or sound, depending on the system’s configuration.

For more information, refer to the AVEVA Enterprise SCADA HMI Controller documentation.

The following table provides detailed information about Data Quality 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.

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.

Note: The severity of alarms may also be indicated by audible alarm messages or sound, depending on the system’s configuration.

For more information, refer to the AVEVA Enterprise SCADA HMI Controller documentation.