Concatenating Multiple TDMS Files in a Single File using NI Software

Updated Aug 21, 2023

Reported In

Software

DIAdem
LabVIEW

Issue Details

I have multiple TDMS files generated on my application that share the same channels and groups names and I want to concatenated each channel with your respective peers of the other files and create a single TDMS file with those.
How can I do that?

Solution

There are some possible solutions for that issue depending on your needs.

Using LabVIEW:

You can simply append one file to another using regular LabVIEW File I/O functions.

Using DIAdem

Manual mode: If you want to perform that operation in manual mode every time you need, you can use DIAdem Append Data function .
Automated mode: If you want to automate that operation, refer to Concatenate Channels examples on DIAdem 2018 Help

Additional Information

You can also merge DIAdem files by using the following syntax in a DOS shell:

copy /b "Path to the first TDMS file" + "Path to second TDMS file" + ... + "Path to n TDMS file" /b "Path to the resulting TDMS file"

for example:

copy /b "C:\Test merging tdms\File 0.tdms" + "C:\temp\Test merging tdms\File 1.tdms" + "C:\temp\Test merging tdms\File 2.tdms" /b "C:\temp\Test merging tdms\Resulting file.tdms"

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