load and save a cluster

I have a group of data that shows the tests failed.  At the beginning of the primary VI, I want to check if the file exists, otherwise create it, and if so, read it.  This file is going to be my cluster saved, indicating the tests that failed previously.

I use datalog open/create/replace and will have a problem with the elements of the cluster always becomes zero.

I also try to save the cluster in the file whenever a test fails.  This does not work either.

Is datalog sub screw the the easiest thing to use here?  Can I use anything other than a cluster?

Thank you

In your backup vi, you must set the input operation to open/create/replace "replace or create.  The first time you write, the datalog is created and the data will be written.

After setting the operation to create your vi Save, I was able to run it and it created a file datalog.  So I ran the vi with an entry error load so that he says historical data.  The data corresponding to what I wrote.  There is no problem with the functions of datalog.

But there is a problem with your logic.  Why do you call an error if file exists?  When loading, you hope that the folder exists.  If your error cases are backward.  If the folder does not exist, why do you write zeros for the datalog?  Also, when writing new data to the datalog, you must define the operation to replace or nothing will happen and the new data will not be saved.

Tags: NI Software

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