Unified Architecture

Part 13: Aggregates Title: Part 13: Aggregates Description:

This specification describes the use of Aggregate functions for UA applications, covering:


  • The concepts of an aggregate and where they can and should be applied to generic applications and Historians
  • Detailed descriptions and behavior requirements of all 37 aggregates
  • Information model description and behavior rules for each data type
  • Extensive library of reference material showing examples of queries and results for each aggregate


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
Version Status Description Date Posted
1.04 Release OPC 10000-13 - Part 13: Aggregates (ZIP/PDF) 2017-11-22 Icon
Version Status Description Date Posted
1.03 Release ZIP/PDF 2015-07-20 Icon
1.02 Release Specification 2012-03-18 Icon