Erreur -1073807265

[frabre]

Lors du déroulement de mon programme d'acquisition j'obtiens aléatoirement une erreur -1073807265 (VISA:(HEX 0xBFFF005F) NRFD et NDAC sont désactivés).

J'utilise une carte GPIB NIPCI, une alimentation KEPCO BOP36-12 avec interface BIT4886.

Est il possible que des parasites soient la cause de ces problèmes aléatoires.

Un mauvais paramétrage de la liaison GPIB ?

Merci d'avance de vos réponses.

[muks]

see here

[muks]

also here

And please try posting in english for better understanding.

Message Edited by muks on 10-29-2009 05:14 PM

[Ray.R]

Ca semble etre un mauvais paramétrage de la liaison GPIB, qui est reliee a une adresse GPIB qui est invalide.

[frabre]

I try in english...

My program works well.
Communication is good most of the time.
The problem seems random.
It can occur after 20 communications or after a thousand.

Thanks in advance.

[muks]

See whether this explanation will help

[muks]

From kb

Possible Cause: The instrument you are trying to communicate with is not at the expected primary address, the instrument is not powered on, or the cable to the instrument is either disconnected or broken.
Solutions:

• Make sure that the GPIB address of your device matches the GPIB address of the device to which you want to write data.
• Verify that the cable is properly connected to the instrument. Try switching cables to verify that the cable is not broken.
• Make sure that at least two-thirds of your devices are powered on.
• For board-level communications, use the appropriate hex code in the ibcmd function to address your device as a Listener.
• Call the ibpad function (and ibsad, if necessary) to set the primary address of your device. The ibpad function will return what the previous setting for the device was, and you can check to see if the configured address matches the device's actual address.

So please check whether it is not a cable fault

[frabre]

I'm not tying to communicate with the instrument, i communicate.

So the address is correct and the cable seems to be as.

The problem is random ???

[frabre]

I forgot to point out a fact.
I have the impression that the problem occurs more often when using another program at the same time (Origin, Internet Explorer) ???

[Ray.R]

Est-ce que l'autre programme communique aussi avec les instruments?

Est-ce que l'instrument est deja dans le mode "remote"?  Tu peux verifier si tu le place en mode "Local" et il devient en mode "Remote" avant de rouler le VI. Cependant, c'est peu probable que cela soit la source du probleme.

Est-ce que tu ovres differentes references VISA pour le meme instrument.  Ce que je pense qui porrait se produire est si tu as deja une reference pour un instrument et tu essais d'ouvrir une deuxieme reference pour le meme instrument.