Simulate Arbitrary Signal Express VI

Owning Palette: Input Express VIs

Requires: Full Development System

Simulates a signal that you define.

Dialog Box Options
Block Diagram Inputs
Block Diagram Outputs
 Add to the block diagram  Find on the palette

Dialog Box Options

ParameterDescription
Signal SpecificationsContains the following options:
  • Define Signal—Displays the Define Signal dialog box, which you use to generate an arbitrary signal.
  • Start over when end of signal is reached—Continuously simulates the signal you defined.
    • X values repeat (0, 1, 2, 0, 1, 2)—Repeats the x values when you select Start over when end of signal is reached.
    • X values continue (0, 1, 2, 3, 4, 5)—Sequentially increments the x values when you select Start over when end of signal is reached.
Signal GenerationContains the following options:
  • One point per iteration—Simulates one point per iteration.
  • Entire signal each iteration—Simulates the entire signal each iteration.
  • One defined Y point per iteration (no interpolation)—Simulates one defined Y point per iteration without using interpolation.
Signal NameSpecifies the name of the signal to display on the block diagram.
Result PreviewDisplays a preview of the signal to be simulated.
  • Number of points—Displays the number of data points in the signal you defined in the Define Signal dialog box.

Block Diagram Inputs

ParameterDescription
Next ValueSpecifies the next value of the signal. The default is TRUE. If FALSE, the Express VI outputs the same value for each iteration.
ResetControls the initialization of the internal state of the VI. The default is FALSE.
error inDescribes error conditions that occur before this node runs.

Block Diagram Outputs

ParameterDescription
SignalReturns the output signal formatted as dynamic data.
Data ValidIndicates whether the data is valid.
error outContains error information. This output provides standard error out functionality.

This Express VI operates similarly to the following VIs and functions:

Gaussian White Noise Waveform
Periodic Random Noise Waveform
Uniform White Noise Waveform
Basic Function Generator
Sawtooth Waveform
Sine Waveform
Square Waveform
Triangle Waveform