OPC Foundation
  • Documents
  • NodeSets
  • Search
5.5 Annotation DataType

Errata exists for this version of the document.

This DataType describes Annotation information for the history data items. Its elements are defined in Table 9.

Table 9 – Annotation Structure

Name

Type

Description

Annotation

Structure

message

String

Annotation message or text.

userName

String

The user that added the Annotation, as supplied by the underlying system.

annotationTime

UtcTime

The time the Annotation was added. This will probably be different than the SourceTimestamp.

Please report errors or issues with the site to webmaster.

Copyright © 2025 - OPC Foundation