result of the difference between the message of exception and results of VisaStatusCode

Hello

first time poster here. Everything has started to learn the ins and outs of instrument control.

I have been using Visual Studio 2010 to create a c# program to set up and use an instrument of digital power meter
(via USB connection), and I noticed that send a defective Query() (on purpose) to an instrument will result in a
exception (as expected). Specifically "timeout expired before the operation is completed.  Code error-1073807339 (0xBFFF0015), ErrorTimeout of VISA"

For communication with the instrument, I use the following library: NationalInstruments.VisaNS

But when I use VisaStatusCode (LastStatus) in making the exception, to see if it gives the same error code.
It only returns the 'success'

The exception error message includes everything I need, but I was wondering why I get a different result.

The LastStatus value isn't supposed to be used for that? Can anyone suggest what is happening here?


Tags: NI Hardware

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