Table Of Contents

IviFgen Configure AM Internal [AM] (G Dataflow)

Last Modified: October 24, 2017

Configures the properties that control the function generator's internal amplitude modulation source. These properties are the modulation depth, waveform, and frequency.

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Note  

This node is part of the IviFgenModulateAM [AM] extension group.

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modulation waveform (Sine)

Pass the waveform you want to use to modulate the output signal. The driver sets the IVIFGEN_ATTR_AM_INTERNAL_WAVEFORM attribute to this value. Defined Values: IVIFGEN_VAL_AM_INTERNAL_SINE - Sinusoid waveform IVIFGEN_VAL_AM_INTERNAL_SQUARE - Square waveform IVIFGEN_VAL_AM_INTERNAL_TRIANGLE - Triangle waveform IVIFGEN_VAL_AM_INTERNAL_RAMP_UP - Positive ramp waveform IVIFGEN_VAL_AM_INTERNAL_RAMP_DOWN - Negative ramp waveform Default Value: IVIFGEN_VAL_AM_INTERNAL_SINE - Sinusoid waveform

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instrument handle

The instrument handle that you obtain from the IviFgen Initialize or IviFgen Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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modulation depth (0.00 %)

Pass the percentage of full modulation you want to apply to the carrier signal. The driver sets the IviFgen>>Amplitude Modulation Attributes>>AM Internal Depth [AM] property to this value. At 0% depth, the output amplitude equals the carrier signal's amplitude. At 100% depth, the output amplitude equals twice the the carrier signal's amplitude. Units: Percentage (%) Default Value: 0.0%

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modulation frequency (1000 Hz)

Pass the frequency at which you want the instrument to generate the modulating waveform. The driver sets the IviFgen>>Amplitude Modulation Attributes>>AM Internal Frequency [AM] property to this value. Units: Hertz (Hz) Default Value: 1000 Hz

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instrument handle out

The instrument handle that you obtain from the IviFgen Initialize or IviFgen Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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