Command requires GPIB controller to be system controller

[iturriamiren]

Hello,

I'm getting this problem when trying to write data from a physical channel. What is the reason for this?

Could anybody help me with this matter? I would really appreciate it.

Thank you very much,

Miren

[Dennis_Knutson]

A physical channel of what? What command are you sending? Are you actually getting this with a GPIB function or are you getting error code 1 with a file I/O function in which case, the first possible reason for the error would apply?

[iturriamiren]

Yes, a physical channel. The error message says:

"Error 5 ocurred at Write to Measurement File-..."

Possible reason(s):

LabVIEW: File already open

==============================

NI-488: Command requires GPIB Controller to be System Controller.

This may help you.

Thank you very much in advance,

Miren

[Dennis_Knutson]

"Yes, a physical channel" is not at all a description of what you are doing.

At least you provided the entire error message. Since you are doing a LabVIEW and not GPIB operation, the first possible reason would apply and you can ignore the second.