error 1055 prevention

[eximo]

Hi Guys,

If you have a funtion that has a reference but is not used every time, a 1055 error occurs from the refnum being invalid.  I want to test the reference when it enters the function so that none of the reference calls are used (case structure) but I don't I don't see any tools for testing a refnum.  Whats the best method for testing "is a refnum?

Regards,

Eximo  😛

[Beau_H]

Hey Eximo,

This seems more like a programming issue than a TestStand issue, but if you are using LabVIEW as your code module you can use:

or 

hope this helps.

[eximo]

That may work.....but i'll just copy the code from the vi, maybe the use of a status to boolean will keep suppress the error, the biggest problem is if I use anything to check to see if the error exists, it causes an error, and stops the progress of the program.  I'll try and see if that works