write the size of measurement files

Hello

I save a lot of data in my controller and you want to write to a file measure tdms format.

the problem is that the files are very large, if I use the "write to file measure" - on purpose - vi.

If I use the 'writing TDMS' - function instead, the files are much smaller, with almost the same parameters.

Is it possible to use the Express VI with the same efficiency, if I used the "writing TDMS" - function?

Why are large files if I have the express vi?

In general, avoid using express screws they tend to be just something you can put down and quickly have something that will work.  They also tend to be inefficient.  In the case of write it to a file as it opens and closes the file whenever you call.  With PDM, which causes a lot of overhead in the file.  If you were doing a Defrag TDMS on each of your two files, it should come out pretty much the same size.

Tags: NI Software

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