Unified Architecture

Part 5: Information Model Title: Part 5: Information Model Description:

This specification provides a detailed description of how the OPC UA address space, nodes, and references are used to define an information model, covering:


  • Detailed descriptions and rules for Nodes and References
  • Detailed descriptions and rules for standard object types, variable types, methods, event types, and standard data-types
  • Information modelling rules, including sub-typing
  • State-Machines and File transfer descriptions

Also download the errata.


License: OPC Specifications Agreement of Use


OPC Foundation membership fees are used by the OPC Foundation for the continuous improvement of this specification, which includes bug-fixes and adding new features as required by the continuous advancement of the OPC Specifications.


Found a bug? Please report any bugs to our Mantis system. Click the "Tracking" tab for a list of current work items. We welcome your bug-fixes and kindly ask you to submit them via Mantis.


Have a Suggestion / Request for enhancement / New Features? Please Join an OPC Foundation Member Working Group (details may be found here). You may also submit requests to the OPC Foundation email address of. All suggestions become the property of the OPC Foundation.


Activities including bug-fixes and feature requests as reported in our Mantis bug-tracking system as described here.



Access: Registered User
VersionStatusDescriptionDate Posted
1.05.01ReleaseOPC 10000-5 - Part 5 - Information Model (ZIP/PDF)2022-03-01 Icon
1.04ReleaseOPC 10000-5 - Part 5: Information Model (ZIP/PDF)2017-11-22 Icon
VersionStatusDescriptionDate Posted
1.05.00ReleaseOPC 10000-5 - Part 5 - Information Model (ZIP/PDF)2021-10-27 Icon
1.03ReleaseZIP/PDF2015-07-20 Icon
1.02ReleaseSpecification2015-03-18 Icon
1.01Release2009-02-08 Icon
1.00Release2006-07-31 Icon