Search

2 result(s) for Annotation Data

• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.5.1 Overview
  Server returns a HistoryData structure for each operation (see Clause 6.6.2 ). ReadAnnotationDataDetails Read Annotation Data This structure selects a set of Annotation Data from the history database by specifying
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.5.6.2 Read Annotation Data functionality
  Read Annotation Data functionality The ReadAnnotationDataDetails structure reads the Annotation Data from the history database for the specified timestamps for one or more HistoricalDataNodes . It will return any annotation that ... Data returned shall match the order of the timestamps supplied in the request. If Annotation Data is not supported for a HistoricalDataNodes then the StatusCode shall be Bad_HistoryOperationUnsupported