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Data Group

The following describes the historical data group settings specific to the FactoryTalk Historian SE connector.

Group Types

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For FactoryTalk Historian SE the following group types are available:

Summary Values from Server

This group type retrieves summary calculations directly from the historian. The following calculations are available:

  • Interpolated

  • Average

  • Maximum

  • Time of Maximum

  • Minimum

  • Time of Minimum

  • Range

  • Standard Deviation

  • Total

  • Count

  • Raw Average

  • Start Value

  • End Value

  • Delta Value

  • Percent Good

  • Percent Bad

Summary Values from XLReporter

This group type retrieves sampled values from the historian and performs calculations on those samples for reporting.

By default, summary values are calculated time weighted, and values are propagated based on the last known value. However, to change this so that summary values are calculated strictly on the data returned check use raw values.

Raw Values

This group retrieves values logged to the historian between the start and end time specified.

Group Settings

Setup Tab (Summary Values for XLReporter)

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The Retrieval settings define how data is retrieved for the calculations selected for the group. The following settings are available:

  • Retrieval Mode

  • This setting defines how data is retrieved from the historian. Both Sampled Values and Raw Values are available where Sampled Values uses the Interpolated calculation.

  • Rate

  • The interval (in seconds) that sampled values are retrieved from the historian.

  • Lead Time

  • The amount of time (in seconds) to retrieve data before the start time.

In this section: