Calls niScope Read Waveform 2,000 times to take an acquisition from the specified channel and retrieve the initial X value, which includes the time-to-digital conversion.

The time-to-digital conversion should be a uniform distribution between two sample points, because triggers should occur randomly. To test this distribution, the distribution of initial X values is created. The percentage of triggers in the smallest bin of this distribution is returned for comparison to a specification to determine if RIS is operating correctly.

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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle is the instrument handle that you obtain from niScope Cal Start. The handle identifies a particular instrument session.

  • ci32.png max time (ms) —

    max time (ms) is the maximum time to allow for each acquisition.

  • cstr.png channels —

    channels specifies the channel(s) to calibrate. For more information, refer to Channel String Syntax.

  • ci32.png distribution size —

    distribution size is the number of bins in the initial x distribution.

  • 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.

  • idbl.png min bin percent —

    min bin percent is the percent of triggers in the minimum bin (0–100.0).

  • i1di32.png distribution array —

    distribution array is the returned distribution of trigger times.

  • ierrcodeclst.png error out —

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