How to use SignalExpress to analyse TDMS files generated from cRIO FPGA interface code

[remapears]

Hello all,
We are working on a project based on acquiring acceleration values from rotating machines using accelerometers and NI compactRIO 9022 (FPGA interface)..
The code assuring the acquisition of values and saving them into TMDS files is done, but after discovering the SignalExpress capabilities, we thought it'll be easier to use SignalExpress to analyse the TDMS files than to make VIs that would do that explicitly..

The problem is that when we load a TDMS file saved from that projet, into the SignalExpress, nothing happens, no values are shown..

So the question is: Can we import TDMS files into the SignalExpress Program to analysis the data? if yes, how? if the answer is using shared variables (as what we read online), we have already done that by defining a variable and assigning the data into it, but when imported in SignalExpress, the same problem occurs and nothing is shown..

Please help

[Reyquaza]

Hello remapears,

What version of SignalExpress are you using? I ask because from my knowledge, importing TDMS files should be natively supported in newer versions of SignalExpress. Try following the instructions here if you haven't already: http://digital.ni.com/public.nsf/allkb/3CEAF51888A117EC862573980061D585. The problem described here sounds similar to what you're seeing, but without more information, I can't be sure.

Also, are you at least able to read the waveform in LabVIEW? If not, make sure the acquisition is running correctly. If so, using LabVIEW may be a better option, especially since you can make modular code that will be able to adapt as your project changes.

[remapears]

Hi there Reyquaza,

Thanks for your reply, I'm using SignalExpress 2014 as well as LabVIEW..
I've already done those steps.. well okay i guess using LabVIEW coding is a better idea for the long run..

Thanks again.