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Create Waveform (From Data » WDT) (G Dataflow)

Last Modified: May 16, 2018

Creates an onboard waveform from waveform data type (WDT) data for use in arbitrary waveform or arbitrary sequence output modes.

The waveform generator must not be in the Generating state when you call this node.

Programming Patterns

You must set the output mode input of Configure Output Mode to arbitrary waveform or arbitrary sequence before calling this node.

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session in

Handle that identifies your instrument session previously allocated by Initialize With Channels.

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channel name

Name of the waveform generator channel that the node uses.

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waveform

Data you want to use for the arbitrary waveform.

The data must be between -1.0 and +1.0. Use the gain input of Configure Arbitrary Waveform or Configure Arbitrary Sequence to generate different voltages.

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use waveform dT for sample rate

Boolean value that specifies whether or not the sample rate should be set to match the sampling information contained in the waveform input.

True The node obtains rate information from data specified by the waveform input and uses the inverse of the dT as the rate.
False The node takes no action unless you set the sample rate by calling Set Sample Rate or by setting the Sample Rate property, in which case the node uses that rate.
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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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session out

Reference to your instrument session to wire to the next node.

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waveform reference out

Reference that identifies the waveform.

This output can be used later for setting the active waveform, changing the data in the waveform, building sequences of waveforms, or deleting the waveform when it is no longer needed.

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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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