converter for TDMS files from Labview/NI

Question

Do we have any workaround to import TDMS files (NI Labview measurement data) into JMP.

I searched and could not find something relevant. I got around an Excel Export functionality from Labview, but it cracks up the file name which one need to manually (or batch job) change. All possible to do but with huge effort if you have hundreds of those files to be imported.

However, I thought/hoped there is anyone aware of a ready to use converter or interface.

Jason_Wiggins · Accepted Answer

Hi Martin,

I could not find a ready made solution either. I think there are a couple of options though.

There is a TDM C DLL  available for download that allows third-party applications to read from TDMS files. This would require someone to write some code to communicate with the DLL. May take some effort but  this seams to be the recommended solution from what I have read.

I have used File I/O VIs in the past and know they work. Probably not an ideal solution if TDMS is standard. Could provide an interim solution if used in parallel with TDMS.

It has been a few years since I have used LabView. There may be other solutions out there that a smart LabView programmer will know. Is there a resident LabView expert the customer can consult with? LabView tech support is no where near as good as ours but its not bad either. If there is no resident expert a tech support call may help.

Enjoy!

J

Peter_Polito · Accepted Answer

Hey Martin, I used Labview for many years and always ran into problems with using TDMS files—they’re great in the LabView environment but not so easy to use outside. TDMS files store a fair bit of additional data that is probably not necessary for use in JMP. A work around I’ve used in the past is to peel out the data from the VI that I want to use and drop it into a .csv or excel file. As I recall, this is pretty straightforward on the LabView programming side (at least in my instance). https://forums.ni.com/t5/LabVIEW/Convert-Import-TDMS-to-Excel/td-p/1088746?profile.language=en

I assume the customer is wanting to automate this process so this may not help but TDMS files can be opened in Excel and exported .xlsx, .csv, etc. with an add-in…

Peter

brady_brady · Accepted Answer

Hi Martin,

It appears that there may be a Python package available for this. Since Python is free and supported by JSL, maybe this would be easier for folks than dealing with dlls.

https://www.google.com/search?rlz=1C1KMZB_enUS649US649&q=TDMS+Python/OR/Lua&spell=1&sa=X&ved=0ahUKEwiayL2WuKXWAhUH_IMKHcNBC7sQBQgjKAA&biw=1366&bih=638