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    Historical Data Access

    Access data on OPC HDA servers
    • Raw Data
      Read unprocessed data from an OPC HDA server
    • Processed Data
      Read data from an OPC server that has been processed by the server
    • Data Manipulation and Display
      Use HDA data objects to format and convert OPC HDA data and its display
    • OPC Foundation HDA Reference
      OPC Foundation standards regarding OPC HDA item attributes

    Featured Examples

    Locate and Browse OPC Historical Data Access Servers

    Locate and Browse OPC Historical Data Access Servers

    Use the OPC Toolbox™ to browse the network for OPC Historical Data Access servers, and use OPC Toolbox functions to query the server name space for server items and their properties.

    Open Script
    Acquire Data from an OPC Historical Data Access Server

    Acquire Data from an OPC Historical Data Access Server

    Acquire data from an OPC Historical Data Access (HDA) server.

    Open Script
    Visualize and Preprocess OPC HDA Data

    Visualize and Preprocess OPC HDA Data

    Work with OPC HDA Data objects.

    Open Script

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