Table Of Contents
Write Waveform (WDT) (G Dataflow)
Writes waveform data type (WDT) data to the waveform in onboard memory.
If streaming is enabled, you can write more data than the allocated waveform size in onboard memory. By default, a call to this node continues writing data from the position of the last sample written.
Programming Patterns
You can change the write position and offset using Set Waveform Next Write Position. You must wire the waveform reference out output of Allocate Waveform or Create Waveform to the waveform reference in input of this node.
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session in
Handle that identifies your instrument session previously allocated by Initialize With Channels.
channel name
Name of the waveform generator channel that the node uses.
waveform reference in
Reference to the arbitrary waveform previously allocated with Allocate Waveform or Create Waveform.
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. |
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.
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.
Default: No error
session out
Reference to your instrument session to wire to the next node.
waveform reference out
Reference that identifies the waveform.
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.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application