Owning Palette: Digital Waveform VIs and Functions
Requires: Base Development System
Returns a subset of the digital input so you can plot the extracted signals individually or in subgroups on a graph. Wire data to the digital waveform input to determine the polymorphic instance to use or manually select the instance.
Use the pull-down menu to select an instance of this VI.
 Add to the block diagram |
 Find on the palette |
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digital waveform is the input digital waveform. |
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signals is a 1D array of numbers. Each number in the array represents a signal number. If any value in signals is greater than the number of signals in the digital input, the VI returns an error. |
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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. |
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digital subset returns the requested subset of digital waveform. |
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error out contains error information. This output provides standard error out functionality. |
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digital data is the set of input digital data. |
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signals is a 1D array of numbers. Each number in the array represents a signal number. If any value in signals is greater than the number of signals in the digital input, the VI returns an error. |
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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. |
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digital subset returns the requested subset of digital data. |
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error out contains error information. This output provides standard error out functionality. |
Use the Digital Signal Subset VI to extract individual signals from a digital waveform. The block diagram below shows how you can combine extracted individual signals with other digital data to create new digital waveforms.
The top Digital Signal Subset VI extracts the first and second signals from the digital waveform. The bottom Digital Signal Subset VI extracts the fourth and fifth signals. The Append Digital Samples VI appends the first signal to the fourth signal, appends the second signal to the fifth signal, and plots the resulting two signals on a digital waveform graph.