How to check visa if the instrument is busy?

Hi, I'm try to code on labview to check for status of a GPIB instrument is busy or not. I think we can use visa check status to check for this. can anyone let me know how please?
thanx.

Perhaps you mean you want to check if the instrument is available? In that case, just try to open a handle to the instrument and check the error.
Or maybe you want to check if the handle to the instrument is still valid? You can use the "Not A Number/Path/Refnum?" to check that.
If not, please give more details.
www.vartortech.com

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