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• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  3.1.4 HistoricalNode
  HistoricalNode Object , Variable , Property or View in the AddressSpace where a Client can access historical data or Events Note 1 to entry: A HistoricalNode is a term used in this ... HistoricalNodes " will refer to the time series data or Events stored for this HistoricalNode . The term HistoricalNode refers to both HistoricalDataNodes and HistoricalEventNodes
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  3.1.5 HistoricalDataNode
  history of a HistoricalDataNode " refers to the time series data stored for this HistoricalNode . Examples of such data are: device data (like temperature sensors) calculated data status information (open/closed
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.7.3 Default configuration
  Default configuration This specification defines a manner of exposing the configuration associated with a HistoricalNode (both HistoricalDataNode and HistoricalEventNode ), but this configuration is not required for all nodes ... Variables, DefaultHEConfiguration for Objects) . A Client shall assume the default configuration for any HistoricalNode that does not reference a historical configuration. The DefaultHAConfiguration object is defined in Table 14 . Table
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.8.1 General
  type of this type for all invocations of the HistoryUpdate Service on any HistoricalNode . See OPC 10000-3 and OPC 10000-5 for details on the AuditHistoryUpdateEventType model