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IviFgen Create Arbitrary Waveform [ARB] (G Dataflow)

Last Modified: October 24, 2017

Creates an arbitrary waveform and returns a handle that identifies that waveform.

You pass this handle to IviFgen Configure Arbitrary Waveform [ARB] to produce that waveform. You also use the handles this node returns to specify a sequence of arbitrary waveforms with IviFgen Create Arbitrary Sequence [SEQ].

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Note  

This node is part of the IviFgenArbWfm [ARB] extension group.

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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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Waveform Size

Pass the size of the arbitrary waveform you want to create. The size must meet the following restrictions: - The size is less than or equal to the maximum waveform size the instrument allows. - The size is greater than or equal to the minimum waveform size the instrument allows. - The size is an integer multiple of the instrument's waveform quantum. You can obtain these values from the Maximum Waveform Size, Minimum Waveform Size, and Waveform Quantum controls of the IviFgen Query Arb Waveform Capabilities VI. Default Value: None

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Waveform Data Array

Specify the array of data you want to use for the new arbitrary waveform. The array must have at least as many elements as the value you specify in the waveform size control. You must normalize the data points in the array to be between -1.00 and +1.00. When you create a multi-channel waveform, this array is the concatenation of the waveform arrays for each channel. In this case, all waveforms must be of the same length. Default Value: None

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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.
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Waveform Handle

Returns the handle that identifies the new arbitrary waveform. Pass this handle to the IviFgen Create Arbitrary Waveform [ARB] VI to generate the arbitrary waveform. Pass an array of these handles to the IviFgen Create Arbitrary Sequence [SEQ] VI to create an arbitrary sequence.

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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