Lets try to explain what is happening here.
- The tdx file only contains the binary data of the measurement. The channel data. Which channel exist and where they are stored is written in the tdm (xml) header file.
- The tdm file is not perfect fit for streaming because channel data has always be aligned in one piece.
To make this work the channels are moved in the tdx file while running measurements in append mode.
This causes the tdx file to contain empty space when your measurement finishes.
- When calling Save following sequence is done
- Check how much dead space is in the tdx file. If the amount of dead space to used space is bad the tdx file is rewritten tdx~
- after rewriting the tdx file the tdm header is written pointing to the data sections inside the tdx file
So in your case the tdm header files didn't show up. Did you stop it because it lasted to long or did it fail? (missing storage place?)
Because of that it is not possible to reconstruct the tdm header.
Maybe you can switch to tdms (s = streaming) file format. If you use the storgae vi's you have to make sure calling Save once after your first shot measured.
Afterwards the tdms file should grow like the tdx file did. Even a switchof of your computer should leave those file intact till the point where they where written.
Maybe you can think of switching to the native tdms API that better fits streaming jobs.
Greetings
Andreas
