Appends the signals from digital waveform (low bits) to the LSB side of digital waveform (high bits). If the sampling rates do not match, error out returns a warning. The start time of digital waveform (low bits) is ignored. Wire data to the digital waveform (high bits) input to determine the polymorphic instance to use or manually select the instance.


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Inputs/Outputs

  • cu8.png default value —

    default value specifies the value to use to fill in the extra samples of the digital data in digital waveform out if digital waveform (low bits) and digital waveform (high bits) do not have the same number of samples.

    00 (default)—Force Down
    11—Force Up
    2Z—Force Z
    3L—Compare Low
    4H—Compare High
    5X—Compare Don't Care
    6T—Compare Invalid
    7V—Compare Valid
  • cdigwdt.png digital waveform (high bits) —

    digital waveform (high bits) is the first set of data in the digital waveform.

  • cdigwdt.png digital waveform (low bits) —

    digital waveform (low bits) is the set of data to append to digital waveform (high bits).

  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. With the following exception, this input provides standard error in functionality.

    This node runs normally even if an error occurred before this node runs.

  • idigwdt.png digital waveform out —

    digital waveform out returns the waveform that results from appending digital waveform (low bits) to digital waveform (high bits). This output matches the compression of the input.

  • ierrcodeclst.png error out —

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

    • Use the Append Digital Signals VI to append the signals from two separate digital waveforms into a single digital waveform. You can append signals with the same number of samples or of different numbers of samples. For example, if you have two digital signals that both consist of two rows of 8 bits, the resulting digital data consists of two rows of 16 bits. If you combine two signals, one that consists of two rows of 8 bits and the other that consists of one row of 8 bits, the resulting digital data consists of two rows of 16 bits. The Append Digital Signals VI pads the remaining columns in the second sample with the value you select in the default value input.

    Examples

    Refer to the following example files included with LabVIEW.

    • labview\examples\Controls and Indicators\Graphs and Charts\Digital Waveform Graph\Append Digital Data By Signal.vi