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7 result(s) for HistoryReadDetails

• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.5.1 Overview
  HistoryRead Service defined in OPC 10000-4 can perform several different functions. The HistoryReadDetails parameter is an Extensible Parameter that specifies which function to perform and the details that ... Extensible Parameter structure ReadRawModifiedDetails with the isReadModified Boolean parameter set to TRUE. Table 27 - HistoryReadDetails parameter Symbolic Names Symbolic Name Functionality Description ReadEventDetails Read event This structure selects
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.11.3.2 Parameters
  Name Type Description Request requestHeader RequestHeader Common request parameters (see 7.32 for RequestHeader definition). historyReadDetails Extensible Parameter HistoryReadDetails The details define the types of history reads that can be performed ... HistoryReadDetails parameter type is an extensible parameter type formally defined in OPC 10000-11 . The ExtensibleParameter type is defined in 7.17 . timestampsToReturn Enum TimestampsTo Return An enumeration that specifies
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  4.6 Bounding Values and time domain
  returnBounds, indicating that BoundingValues are requested. For a complete description of the Extensible Parameter HistoryReadDetails that include StartTime , EndTime and NumValuesPerNode, see 6.5 . The concept of Bounding Values
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.1 General
  HistoricalDataNodes. The HistoryRead service has the following parameters (see OPC 10000-4 for details): historyReadDetails timestampsToReturn releaseContinuationPoints nodesToRead [] nodeId indexRange dataEncoding continuationPoint The HistoryReadDetails is an extensible parameter that
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.3 Continuation Points
  read call. For additional discussions regarding ContinuationPoints and HistoryRead please see the individual extensible HistoryReadDetails parameter in 6.5 . If the Client specifies a ContinuationPoint , then the HistoryReadDetails parameter ... call. It is permissible to change the dataEncoding parameter with each request. If the HistoryReadDetails parameter or TimestampsToReturn parameter change the Server can ignore the updated parameters, it can detect
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.6.1 Overview
  Extensible Parameter whose structure depends on the functions to perform for the HistoryReadDetails parameter. See OPC 10000-4 for details on Extensible Parameters
• OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates
  5.2.1 Overview
  HistoryRead service defined in OPC 10000-4 can perform several different functions. The historyReadDetails parameter is an Extensible Parameter that specifies which function to perform. The ReadProcessedDetails structure is used