SVT UFF58 Get Function References VI

Sound and Vibration Measurement Help

Edition Date: March 2018
Part Number: 372416L-01
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LabVIEW 2018 Sound and Vibration Toolkit Help
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Owning Palette: UFF58b VIs

Requires: Sound and Vibration Toolkit

Retrieves the function references and the function types of all the functions specified by function type that are present in the UFF58 (universal file format) file specified by file refnum.

Details  Example

file refnum specifies the UFF58 file refnum associated with the file you want to use.
function type (all functions:0) specifies the type of functions returned.

0all functions (default)
1all time waveforms
2all spectra (real)
3all spectra (complex)
4general or unknown
5time response
6auto spectrum
7cross spectrum
8frequency response function
11auto correlation
12cross correlation
13power spectral density (PSD)
14energy spectral density (ESD)
15probability density function
17cumulative frequency distribution
18peaks valley
22mode indicator function
23force pattern
24partial power
25partial coherence
28shock response spectrum
29finite impulse response (FIR) filter
30multiple coherence
31order function
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
dup file refnum returns the same value as the input file refnum. You can wire this output to the file refnum input of another UFF58b or UFF58 Advanced VI. You also can use this refnum to close the UFF file.
function refnums returns the references to all the functions in the UFF58 file.
function types returns all the function types in the UFF58 file as specified by function type. A function type can have any of the following values.

0general or unknown
1time response
2auto spectrum
3cross spectrum
4frequency response function
7auto correlation
8cross correlation
9power spectral density (PSD)
10energy spectra density (ESD)
11probability density function
13cumulative frequency distribution
14peaks valley
18mode indicator function
19force pattern
20partial power
21partial coherence
24shock response spectrum
25finite impulse response filter
26multiple coherence
27order function
number of functions returns the total number of functions specified by function type that are in the UFF58 file.
error out contains error information. This output provides standard error out functionality.

SVT UFF58 Get Function References Details

You cannot edit a UFF58 file with the UFF58b or UFF58 Advanced VIs after you write and close the file. If you need to edit the contents of an existing UFF58 file after you write and close the file, you can read the information then write modified information to a new UFF58 file.


Refer to the Read Time Waveforms with Records (UFF File) VI in the labview\examples\Sound and Vibration\UFF58 directory for an example of using the SVT UFF58 Get Function References VI.


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