Sweepable Parameters

The following table lists the parameters you can include in a sweep operation for each step.

Step Name	Parameter	Conditions
Create Analog Signal	Frequency	Only if Signal type is Sine Wave, Square Wave, Triangle Wave, Sawtooth Wave, or Formula
	Phase	Only if Signal type is Sine Wave, Square Wave, Triangle Wave, or Sawtooth Wave
	Amplitude	All signal types except DC Signal
	Offset	All signal types
	Duty cycle	Only if Signal type is Square Wave
	Sample rate	Always sweepable
	Block size	Always sweepable
	Start freq.	Only if Signal type is Multi-tone
	Stop freq.	Only if Signal type is Multi-tone
	Step freq.	Only if Signal type is Multi-tone
Create Digital Signal	Block size	Always sweepable
	Sample rate	Always sweepable
DAQmx Acquire	Samples to read	Always sweepable
	Sample rate	Always sweepable
	Input range max value (per channel)	Always sweepable
	Input range min value (per channel)	Always sweepable
NI-SCOPE Acquire	Sample Rate	Always sweepable
	Record Length	Always sweepable
	Channel i - Range	Only if channel i is enabled
	Channel i - Offset	Only if channel i is enabled
	Trigger Delay	Only if trigger Type is not Immediate
	Trigger Level	Only if trigger Type is Edge or Hysteresis
	Video Trigger Line Number	Only if trigger Type is Video
NI-FGEN Standard Function	Frequency	Always sweepable
	Duty Cycle	Only if function Type is Square
	Amplitude	Always sweepable
	Offset	Always sweepable
	Phase	Always sweepable
NI-FGEN Arbitrary Waveform	Sample Rate	Only if Extract from waveform is not selected
	Gain	Only if Extract from waveform is not selected
	Offset	Only if Extract from waveform is not selected
Filter	Cutoff	Only if Type is Lowpass or Highpass
	Low cutoff	Only when Type is Bandpass or Bandstop
	High cutoff	Only when Type is Bandpass or Bandstop
	Order	Only when Mode is IIR Filter
	Number of taps	Only when Mode is FIR Filter
Scaling and Conversion (Time Domain)	Pre-gain offset	Always sweepable
	Gain	Always sweepable
	Post-gain offset	Always sweepable
Scaling and Conversion (Frequency Domain–Magnitude)	Gain	Always sweepable
Scaling and Conversion (Frequency Domain–Phase)	Correction delay	Always sweepable
Subset and Resample	Start position	Only when you place a checkmark in the Extract subset checkbox
	Length	Only when you place a checkmark in the Extract subset checkbox
	dt	Only when you place a checkmark in the Resample checkbox
Interactive Alignment	x-offset	Only when Mode is Manual and you place a checkmark in the Allow x-offset checkbox
	y-offset	Only when Mode is Manual and you place a checkmark in the Allow y-offset checkbox
	x-gain	Only when Mode is Manual and you place a checkmark in the Allow x-gain checkbox
	y-gain	Only when Mode is Manual and you place a checkmark in the Allow y-gain checkbox
Power Spectrum	Number of avg.	Always sweepable
Frequency Response	Number of avg.	Always sweepable
Distortion	Highest harm.	Always sweepable
	Approx. fund. freq.	Always sweepable
Tone Extraction	Approx. freq.	Always sweepable
Limit Test	Upper constant	Only when Limits source is User Defined Constants
	Lower constant	Only when Limits source is User Defined Constants
	Upper gain	Only when Limits window based on is Single Limit & Range
	Upper offset	Only when Limits window based on is Single Limit & Range
	Lower gain	Only when Limits window based on is Single Limit & Range
	Lower offset	Only when Limits window based on is Single Limit & Range
	Limit constant	Only when Limits window based on is Single Limit & Range

The following steps do not contain parameters you can include in a sweep operation:

• Load from ASCII
• Load from LVM
• Load from SPICE
• Save to ASCII/LVM
• Time Averaging
• Window
• Arithmetic
• Formula (Scalar)
• Amplitude and Levels
• Histogram
• Timing and Transition

Note  Sweeping NI-FGEN Standard Function parameters does not cause the Start Trigger to be resent for each iteration. The device may reset on each iteration, depending on which parameters you are sweeping. During this device reset, the RTSI lines may be reset, resulting in what looks like a false trigger. This false trigger does not correlate with the timing of the start of the generation. If you are triggering an NI-SCOPE Acquire or DAQmx Acquire step, consider making the NI-SCOPE Acquire or DAQmx Acquire step execute after the NI-FGEN Standard Function step by placing a checkmark in the Start this step after checkbox on the Execution Control tab, and selecting the NI-FGEN Standard Function step as the step on which to wait.