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AVEVA Pipeline Operations for Liquids

View PLM records in the Pipeline Monitoring (PLM) Summary window

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View PLM records in the Pipeline Monitoring (PLM) Summary window

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  • Last UpdatedApr 24, 2025
  • 3 minute read

The Pipeline Monitoring (PLM) Summary window provides a summary of current PLM information and allows access to PLM control dialogs.

The values on the PLM Summary window, along with all of the other windows that supply information about PLM, are subject to any custom rounding that has been applied to the precision values. Custom rounding can be applied to the following values:

  • Volume

  • Temperature

  • Density

  • Pressure

To access the PLM Summary window

  1. To access the PLM Summary window, you must first open the easy eXtended Operator Station (ezXOS).

    After opening ezXOS, the Navigation Menu appears.

  2. Select the LMS dropdown menu and click PLM.

    The PLM Summary window appears.

The following table describe the items available on the PLM Summary window.

Field

Description

Name

The name of the PLM region.

Inh

This field indicates whether or not the PLM region is inhibited (y/n). Inhibited PLM regions do not have a balance calculated.

Auto Inh

This field indicates whether or not the PLM region is automatically inhibited due to a status value change (y/n). Inhibited PLM regions do not have a balance calculated.

Calc

This field indicates whether or not the PLM region is currently calculating (y/n).

Alarm Suppressed

This field indicates whether or not Alarm Suppression currently prevents the PLM region from alarming (y/n).

Note: The Pipeline Monitor (PLM) application supports scenarios where both Alarm Suppression and PLM Voting are configured. However, Alarm Suppression and Dynamic Alarming are mutually exclusive—if Dynamic Alarming triggers are specified, Alarm Suppression will be automatically disabled.

Current Balance

The current balance for each region.

Alarm State

The current alarm state for each PLM region.

ST1 DEV

ST2 DEV

ST3 DEV

LT1 DEV

LT2 DEV

LT3 DEV

The deviation fields show the volume deviations for the short-term periods (ST1 DEV, ST2 DEV, and ST3 DEV) and long-term periods (LT1 DEV, LT2 DEV, and LT3 DEV).

ST1 ALM

ST2 ALM

ST3 ALM

LT1 ALM

LT2 ALM

LT3 ALM

The alarm fields indicate the alarm states for the short-term periods (ST1 ALM, ST2 ALM, and ST3 ALM) and long-term periods (LT1 ALM, LT2 ALM, and LT3 ALM). If a period is in alarm, the field displays yes. If the period is not in alarm, the field displays no.

Group

The group this PLM region belongs to.

Description

A description of the PLM region.

Safety

This designates the point as being safety-related. Selecting the checkbox will filter for the summary windows’ safety-related points.

Remote

This checkbox is used to filter by remote. Selecting the checkbox will enable the field to the right of the Remote checkbox. Selecting (...) opens a list where you can search for a particular remote to filter the content on the screen by.