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NI 488: command requires GPIB controller to be controller in charge

error 1.PNG

This is what I'm getting. Also I get error 56 sometimes at the TCP Open Connection terminal sometimes in another VI. 

 

Untitled.jpg

 

Untitled2.jpg

 

Can you find the possible cause of the error?

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Message 11 of 14
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Hi shreya,

 

most probably the queue reference is invalid (as the error occures at Dequeue function)…

Best regards,
GerdW


using LV2020 on Win8.1+cRIO
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Message 12 of 14
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Hi,

 

But, the error occurs only once or twice a day, the program works fine rest of the time. The occurence of error is very random.

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Message 13 of 14
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Message 14 of 14
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