niFgen Configure Frequency List VI
- Updated2025-10-07
- 4 minute(s) read
Configures the properties of the signal generator that affect frequency list generation. Selects the frequency list to produce and sets the amplitude, DC offset, and start phase.

Inputs/Outputs
DC Offset
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DC Offset specifies the DC offset of the standard waveform that you want the signal generator to produce. NI-FGEN sets the DC Offset property to this value. This value is the offset at the output terminal. The value is the offset from ground to the center of the waveform you specify with the Waveform parameter. For example, to configure a waveform with an amplitude of 10.00 V to range from 0.00 V to +10.00 V, set the DC Offset to 5.00 V. Units: volts (V)
Instrument Handle
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Instrument Handle identifies a particular instrument session. Instrument Handle is obtained from the niFgen Initialize VI, niFgen Initialize With Options VI, or the niFgen Initialize With Channels VI.
Channel Name
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Channel Name specifies the channel that this VI uses.
Frequency List Handle
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Frequency List Handle specifies the handle of the frequency list you want the signal generator to produce. You can create multiple frequency lists using the niFgen Create Frequency List VI, which returns a handle that you use to identify each list.
error in (no error)
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. Default value: no error
Amplitude
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Amplitude specifies the amplitude of the standard waveform that you want the signal generator to produce. NI-FGEN sets the Amplitude property to this value. This value is the amplitude at the output terminal. For example, to produce a waveform ranging from -5.00 V to +5.00 V, set Amplitude to 10.00 V. Units: Vpk-pk Note
This parameter does not affect signal generator behavior when you set Waveform Type to DC.
Start Phase
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Start Phase specifies the horizontal offset of the standard waveform that you want the signal generator to produce. Specify this parameter in degrees of one waveform cycle. NI-FGEN sets the Start Phase property to this value (measured in degrees of one cycle). A start phase of 180 degrees means output generation begins halfway through the waveform. A start phase of 360 degrees offsets the output by an entire waveform cycle and is therefore identical to a start phase of 0 degrees. Note
This parameter does not affect signal generator behavior when you set the Waveform parameter to DC
Instrument Handle Out
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Instrument Handle Out passes a reference to your instrument session to the next VI.
error out
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error out contains error information. This output provides standard error out functionality. |
DC Offset
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Instrument Handle
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Channel Name
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Frequency List Handle
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error in (no error)
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Instrument Handle Out
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error out
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