Returns the actual number of points the digitizer acquires for each channel. After configuring the digitizer for an acquisition, call this VI to determine the size of the waveforms that the digitizer acquires. The value is equal to or greater than the minimum number of points specified in any of the Configure Horizontal VIs.

Use the record length returned by this VI as the input to the numSamples parameter of the Read and Fetch VIs.

Related topics


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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle identifies a particular instrument session.

  • cerrcodeclst.png error in —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • iivrn.png instrument handle out —

    instrument handle out has the same value as the instrument handle.

  • ii32.png actual record length —

    actual record length returns the actual number of points the digitizer acquires for each channel.

    NI-SCOPE returns the value held in the Horizontal Actual Record Length property; refer to Coercions of Horizontal Parameters for more information.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.