DTbl Digital Subset VI

Retrieves a subset of a waveform at a specified time or index. You must manually select the polymorphic instance you want to use.


icon

Inputs/Outputs

  • cdigtblrn.png digital data —

    digital data is the set of digital data for which you want to retrieve a subset.

  • cu32.png start —

    start is the data element or time value where you want to start acquiring a data subset.

  • cu32.png number of samples —

    number of samples specifies the number of samples to include in digital data subset.

  • cerrcodeclst.png error in (no error) —

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

  • idigtblrn.png digital data subset —

    digital data subset is the digital data subset.

  • ierrcodeclst.png error out —

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

    • For example, consider a waveform of 128 scans with a dt of 1.00. If you wire 40.00 to duration and 25.00 to start samples/time, the actual duration and actual start samples/time are the same, 40.00 and 25.00, respectively. However, if the waveform has a dt of 2.00, the actual duration and the actual start samples/time are 40.00 and 24.00, respectively.

    Examples

    Refer to the following example files included with LabVIEW.

    • labview\examples\Waveform\Waveform - Get Subset.vi