How to save data along configuration in one file

[Quiztus2]

I acquire waveforms and images and need to save the raw data with their nested acquisition settings. Until now I used tdms and saved the settings as json string in a tdms parameter. Opening those files again works well as long as my application's settings cluster doesnt change.
I like to have configuration and data in one file. Any suggestions on how to achieve this more robustly regarding changing settings cluster? 

[GerdW]

Hi Quiztus,

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@Quiztus2 wrote:

I acquire waveforms and images and need to save the raw data with their nested acquisition settings. Until now I used tdms and saved the settings as json string in a tdms parameter. Opening those files again works well as long as my application's settings cluster doesnt change.
I like to have configuration and data in one file. Any suggestions on how to achieve this more robustly regarding changing settings cluster? 

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I still would use TDMS files, but instead of converting your (typedefined) clusters to JSON strings I would store the cluster elements as individual properties of the TDMS group/channel.

It's a little more overhead while writing/reading, but prevents all problems with your cluster typedefinitions: you can read all properties and use default values for non-existing items…

[Quiztus2]

I followed your advice and it looks promising. For the sake of completeness I upload my working snippet.