niFgen Configure Frequency List VI

NI Signal Generators Help (NI-FGEN 18.1)

Edition Date: April 2018

Part Number: 370524V-01

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Installed With: NI-FGEN

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.

Note  The signal generator must not be in the Generating state when you call this VI.
Note  You must set the Output Mode parameter to Frequency List using the niFgen Configure Output Mode VI before calling this VI.

niFgen Configure Frequency List

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Instrument Handle identifies your instrument session.

Instrument Handle is obtained from the niFgen Initialize VI, niFgen Initialize With Options VI, or the niFgen Initialize With Channels VI.

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Channel Name specifies the channel that this VI uses.

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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.

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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)

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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.
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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
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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

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Instrument Handle Out passes a reference to your instrument session to the next VI.

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

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