Process Automation Device Information Model (PA-DIM) Working Group Introduces Extensions to Standard with Release of Version 1.1

Author photo: Craig Resnick
ByCraig Resnick
Company and Product News

The co-owners of Process Automation Device Information Model (PA-DIM), including FDT Group, FieldComm Group, ISA 100 WCI, NAMUR, ODVA, OPC Foundation, PROFIBUS and PROFINET International, VDMA, and ZVEI, announced the release of the PA-DIM Version 1.1 specification. This release includes expanded device type support for process analyzers and an enhanced basic hierarchy structure with new extensions, helping both the industrial user and vendor manufacturing communities.

Process Automation Device Information Model

The PA-DIM specification is designed to help improve information standardization for process automation applications. All co-owners worked together to support a unified information model that more seamlessly integrates OT data exchange with IT systems and other higher-level applications. This model includes core parameters, capabilities, status, and diagnostic data based on the NAMUR Open Architecture (NOA) initiative. It allows users to access and interpret device information more consistently, regardless of the fieldbus protocol, device type, or manufacturer, helping to enhance Industrial Internet of Things (IIoT) architectures.

With the release of PA-DIM Version 1.1, the standard has been enhanced to introduce new extensions and features, helping to further empower users with more comprehensive device integration capabilities.

Key highlights of the PA-DIM Version 1.1 specification include:

  • Expanded device-type support for process analyzers, including Total Organic Carbon (TOC), Continuous Gas, and pH. This extension helps to broaden the scope of the standard and enable more seamless integration and management of analytical instruments within process automation systems.

  • Enhancements of the basic hierarchy structure to include new extensions, such as device condition sets, signal condition sets, and signal calibration. These extensions help to give users greater flexibility and functionality in representing device information, including attributes, such as type, timestamp, and calibrated values.

PA-DIM helps to facilitate various applications, such as:

  • Providing/receiving information to/from HMIs, information apps, and reporting apps.

  • Supporting inventory management and remote monitoring applications.

  • Enabling real-time control applications, such as reading process values and setting parameters.

  • Device configuration and parameterization.

  • Configuring device security and monitoring its current hardening status.

  • Providing information for device dashboards.



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