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• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  4.3 Historians and interruption of data collection
  interruption can also have been due to an action that stopped the collection of HistoricalData or historical Events . Some of these interruptions can recover with no loss of data, others
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.6.1 Overview
  Overview Subclause 5.6 provides examples of Historian instance configuration. It includes both HistoricalData and HistoricalEvent configuration, both internally collected data and externally sourced data
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.6.3 Historical data
  Historical data The following example illustrates a Historian that obtains values for a HistoricalData node from another Server. Figure 4 - Example Historizing External Data Source The Pressure Variable
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.8.10 AuditHistoryBulkInsertEventType
  subtype of AuditEventType and is used for tracking a bulk insertion of HistoricalData or HistoricalEvents into a Historian . This Event should not be generated for a given Node more frequently