Splitting large UFF58b files

[M0z]

I have been trying to open some UFF58b files in Signal Express.  Unfortunately with the larger files (300 - 500 MB)  the program crashes as soon as I try to review any of the waveforms.  The stored functions are short bursts of vibration data from 22 channels.  Is it possible to extract a set of 22 functions with the same timestamp using Signal Express?

Alternatively, what is the best way to extract a dataset using Labview?  I have been looking at the Data Storage VIs and can succesfully open the files with Open Data Storage (UFF58b).  Is it possible to set up a Query to select a particular Timestamp?

[PHarris]

Hello,

Would you be able to attach a small UFF58b file as an example of the dataset you are working with? From what I understand you wish to extract a value from each function for the same moment in time?

Kind Regards,

[M0z]

Hi

The attached UFF58 file shows one set of Time Waveforms for 22 sensors captured at the same time.

Please Note: I have renamed it as a txt file as uff is not recognised as a valid extension for an attachment.

The files I am working with contain 15000 - 18000 Time Waveforms (22 channels x 700 approx Time&Date (Record 3?))

Ideally, I would like to split the original file into 700 approx Time/Date files. This would allow me to view a block of all 22 channels relatively easily.

I don't need to extract sections of the Time Waveforms as they are only 2-3 seconds long and easily manageable.

Regards

Paul

[PHarris · Accepted solution]

Hi Paul,

Thanks for that. Please see this example which I just created to perform what you described. At present you can specify the Record 3 timestamp you are interested in and it will return those waveform functions.

I hope that helps.

Kind Regards,

[M0z]

It works perfectly!

Many Thanks