AVEVA Pipeline Operations for Gas 2025 release notes

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Last UpdatedMay 22, 2026
6 minute read

The AVEVA Pipeline Operations for Gas 2025 release notes contain information on applicable expectations and limitations, new features and enhancements, deprecated or removed features, fixed and known issues, and documentation included in this release.

Expectations and limitations

The following expectations and limitations should be considered for this release:

As of the date of this release, the only supported upgrade path is from 2024 SP1 Patch 1 to 2025—including all hotfixes.

New features and enhancements

The following new features and enhancements were added:

AVEVA Pipeline Operations for Gas was enhanced to support Gas Quality redirection, which allows Controllers to substitute an invalid gas quality (GQ) record with any valid GQ record.

For further information, please refer to the following user documentation sections:
- "Gas quality (GQ) redirection" in the AVEVA Pipeline Operations for Gas Controller documentation
- "Gas Quality Row Details: Main tab" in the AVEVA Pipeline Operations for Gas Administrator documentation
Errors in gas analysis data as a result of user entry or bad configuration data downloaded to the flow computer can result in inaccurate flow measurement. In order to prevent the download of bad gas analysis data to a flow computer, you can specify and enable setpoint limits on a component-by-component basis. The setpoint limits feature specifies the valid range of data for each component. The system only downloads gasquality records where all components are within the setpoint limits.

If one or more components exceed the limits of their acceptable data range, the system raises an alarm under the Setpoint category regarding the setpoint limit check failure. An Administrator can inhibit these alarms by selecting Inhibit Setpoint Limit Alarms on the Inhibits tab of the gasquality Row Edit dialog.

For more information, refer to the following sections in the in the AVEVA Pipeline Operations for Gas Administrator documentation:
- Gas quality Row Edit: Setpoint Limits tab
- Gas quality Row Edit: Inhibits tab
The following elements have been added to the Gas Quality object:
- Carbonyl Sulfide (COS)
- Mercaptan Sulfur (MERC)
- Supercompressibility Factor (COMFCT)
- Unnormalized Mole Total (NTOT)
- Mole Total (HTOT)
  
  Note: If you want to use a supported protocol to upload or download these elements, manually update the Configurable Gas Load (CGL) template to add these new elements. For information on how to add these elements, please contact AVEVA Customer Support.
The Virtual Chromatograph feature allows the System Administrator to configure a virtual gasquality record, where the gas quality composition is defined by upstream gas qualities that share similar properties. The virtual chromatograph record can handle up to 20 different sources. The values for these points are calculated using the flow-weighted average of the chosen upstream gas quality information.

For more information, refer to "Gas Quality Row Edit: Virtual Chromatograph tab" in the AVEVA Pipeline Operations for Gas Administrator documentation.
With the release of AVEVA Pipeline Operations for Gas 2025, you can access the online help files via the AVEVA Help Viewer or the AVEVA Documentation portal (docs.aveva.com).

This release marks the transition of our online help from the AVEVA Help Viewer to the AVEVA Documentation portal, which offers enhanced security, unified product content, faster search functionality, and a modern user experience with customization options.

Future releases will not include or support the AVEVA Help Viewer, but documentation will still be available with the installation media in PDF (user documentation) and HTML (API reference documentation) formats.

To view the AVEVA Pipeline Operations for Gas documentation on the AVEVA Documentation portal, sign in with your AVEVA product-support credentials (the same ones used for the Knowledge and Support Center).

As the AVEVA Documentation portal evolves, previously released versions of the documentation will be available for download as PDFs and HTML zip files. For more information, visit the AVEVA Documentation portal.
We have updated the language used in our deliverables to be more consistent and modern.

Deprecated features

There are no features deprecated or removed in this release.

Schema change information

The following tables detail the schema changes that were made as part of the new features and enhancements or defect fixes in this release.

Arrays

Field	Description of change
GasQ_AnaArray	Dimension modified from 35 to 41.
GasQ_AvgArray	Dimension modified from 35 to 41.
GasQ_DataArray	Dimension modified from 35 to 41.
GasQ_HistArray	Dimension modified from 35 to 41.
GasQ_manValArry	Dimension modified from 35 to 41.
setpoint_Array	New array.
vc_sources	New array.

Enumerations

Name	Field	Description of change
GasC_configItem	GASC_CFG_128	Newly added.
	GASC_CFG_COSG	Newly added.
	GASC_CFG_MERC	Newly added.
	GASC_CFG_NTOT	Newly added.
	GASC_CFG_MTOT	Newly added.
	GASC_CFG_COMFCT	Newly added.
	GASC_CFG_TOT	The total number of gas elements has increased from 128 to 134.
	GASC_CFG_228	Newly added.
	GASC_CFG_FL_COSG	Newly added.
	GASC_CFG_FL_MERC	Newly added.
	GASC_CFG_FL_NTOT	Newly added.
	GASC_CFG_FL_MTOT	Newly added.
	GASC_CFG_FL_COMFCT	Newly added.
	GASC_CFG_FLTOT	The total number of gas elements has increased from 228 to 234.

Structures

Name	Field	Description of change
gq_setpoint		New structure.
	setpointEnable	New field.
	setpointLow	New field.
	setpointHigh	Newfield.
gqChromflow		New structure.
	sourcename	New field.
	flowname	New field.
	point_enable	New field.

Tables

Table name	Field	Description of change
gasquality	redirectSource	New field.
	redirect	New field.
	virtChromEnable	New field.
	virtChrom	New field.
	setpointLimits	New field.
	setpointLimitsAlmInh	New field.
	failedLastConfiguration	New field.
	failedLastSetpointLimit	New field.

Display change information

The following easy eXtended Operator Station (ezXOS) displays were modified as part of the new features and enhancements or defect fixes in this release:

CNTL_GASQUALITY.XEM

Fixed issues

The following issues were fixed.

ID	Description
Case–N/A (Defect–3427839)	This defect fix addresses an issue where database syncs from the RealTime database (RTDB) to the Electronic Flow Measurement (EFM) database in the cloud generated constant deadlock errors. This defect fix involved updating the "Update the Default RTG.json File" section of the internally provided installer documentation. For more information around installation, please contact AVEVA Customer Support. Important: As part of this defect fix, a new key—syncOwnedDatasetsOnly—was added to the RTG.json file.
Case–960414852 (Defect–3385769)	This defect fix addresses an issue where a previously captured hourly entry for a manual, host-calculated meter was duplicated after a mode switch.
Case–960441649 (Defect–3467506)	This defect fix addresses an issue where a host-calculated linepack gasmeter indicated that a segment was fresh despite stale input data.
Case–960486716 (Defect–3648353)	This defect fix addresses an issue where realtime2Meas exited abruptly.

Known issues

There are no known issues in this release.

User documentation

This release includes three options to access and view the AVEVA Pipeline Operations for Gas persona-based user documentation:

Single user guides in PDF form.
A web suite of documentation that includes all of the AVEVA Pipeline Operations for Gas user documentation in a single web help system.
(New) The AVEVA Documentation Portal.

For more information about the AVEVA Documentation Portal, refer to the "New features and enhancements" section of the AVEVA Pipeline Operations for Gas Release Notes documentation.

Note: The latest version of the documentation is available on the AVEVA Knowledge & Support Center and the AVEVA Documentation Portal.

The following user documentation is included with this release:

AVEVA Documentation Portal

To view the AVEVA Pipeline Operations for Gas user documentation on the portal, sign in with your AVEVA product-support credentials (the same ones used for the Knowledge and Support Center).
AVEVA Pipeline Operations for Gas Web Help (HTML)

There are three ways to access the Web Help:
- Download the Web Help package from Citrix ShareFile, and install it on a web server for users in your work environment to access.
  
  The package contains a web.config file that includes the required MIME type definitions.
- Via the AVEVA Knowledge & Support Center.
- View it through the AVEVA Help Viewer consolidated product documentation utility installed with AVEVA Pipeline Operations for Gas. By default, this product documentation utility can be accessed by browsing to https://localhost:5000 in any web browser.
  
  Note: For the best online help experience, we recommend using a web browser like Microsoft Edge, Google Chrome, or Mozilla Firefox. For more information on installing the AVEVA Help Viewer, please contact AVEVA Customer Support.
AVEVA Pipeline Operations for Gas Administrator documentation
AVEVA Pipeline Operations for Gas Controller documentation
AVEVA Pipeline Operations for Gas Supported Configurations documentation
AVEVA Pipeline Operations for Gas Release Notes documentation (this document)