Waveform Scalar Limit Comparison (G Dataflow)

Last Modified: January 12, 2018

Compares the waveform data values to a scalar value.

waveform

The waveform that includes the data you want to compare to a specified limit.

compare condition

The comparison operation you want to use to compare the waveform data value to the scalar value.

Name Value Description
< 0 The highest or lowest value in the waveform is less than the limit.
<= 1 The highest or lowest value in the waveform is less than or equal to the limit.
> 2 The highest or lowest value in the waveform is greater than the limit.
>= 3 The highest or lowest value in the waveform is greater than or equal to the limit.

Default: 3

limit

Number to which you want to compare the highest or lowest data value in the waveform.

Default: 5

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

waveform and result

Two waveforms in an array. The first element is a copy of data. The second element is the failure waveform, which is a copy of data with all elements that passed replaced by NaN. All valid elements are failures.

passed?

A Boolean value indicating whether the highest or lowest data value meets the compare condition based on the limit.

 True The highest or lowest data value meets the comparison. False The highest or lowest data value does not meet the comparison.

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