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GIPB Object not opening via Matlab

Question asked by VR4V6E39 on Aug 19, 2009
Latest reply on Aug 19, 2009 by VR4V6E39

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Hi, I have a very simple problem that is really anoyying me and am hoping someone can help here.

Okay, so am trying to use Matlab to control a TDR/Wide Oscilscope 86100B via a PCI 82350A GPIB card.
This should be straight forward commands (without the need for Instrument Tool Box) which are as follows:

x=instrfind; delete(x);
hgpib=gpib('agilent',1,7); % board index is 0 and instrument address is 7
fopen(hgpib)

However I get the following error:
??? Error using ==> fopen
GPIB: AGILENT: The specified board is not installed or configured properly.

The connections works fine by using Agilent Connection Export, but not with Matlab or MAX.

Hope someone can help.

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odanzy

Aug 19, 2009 3:55 AM

If you run 'tmtool' in Matlab, what does it return with? This is the quick way to determine the expected information in the command. If your board index is 0, I would expect the command to be "hgpib=gpib('agilent',0,7);". The other option is to switch to VISA and use "hgpib=visa('agilent', 'GPIB0::7::INSTR');"

MAX will have issues finding the 82350B until you enable the Tulip Passport in Tools->NI-VISA->VISA Options.

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VR4V6E39 Aug 19, 2009 6:55 AM

"
If you run 'tmtool' in Matlab, what does it return with? This is the quick way to determine the expected information in the command. If your board index is 0, I would expect the command to be "hgpib=gpib('agilent',0,7);". The other option is to switch to VISA and use "hgpib=visa('agilent', 'GPIB0::7::INSTR');"

MAX will have issues finding the 82350B until you enable the Tulip Passport in Tools->NI-VISA->VISA Options.
"

Many thanks Odanzy for your quick reply. Please ignore the typo in my code comments, the board index is 1.

Anyway I used the VISA function instead and it all works fine now! Thanks mate you made my day!

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odanzy Aug 19, 2009 3:55 AM
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If you run 'tmtool' in Matlab, what does it return with? This is the quick way to determine the expected information in the command. If your board index is 0, I would expect the command to be "hgpib=gpib('agilent',0,7);". The other option is to switch to VISA and use "hgpib=visa('agilent', 'GPIB0::7::INSTR');"

MAX will have issues finding the 82350B until you enable the Tulip Passport in Tools->NI-VISA->VISA Options.
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VR4V6E39 Aug 19, 2009 6:55 AM
Mark Correct
Correct Answer
"
If you run 'tmtool' in Matlab, what does it return with? This is the quick way to determine the expected information in the command. If your board index is 0, I would expect the command to be "hgpib=gpib('agilent',0,7);". The other option is to switch to VISA and use "hgpib=visa('agilent', 'GPIB0::7::INSTR');"

MAX will have issues finding the 82350B until you enable the Tulip Passport in Tools->NI-VISA->VISA Options.
"

Many thanks Odanzy for your quick reply. Please ignore the typo in my code comments, the board index is 1.

Anyway I used the VISA function instead and it all works fine now! Thanks mate you made my day!
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GIPB Object not opening via Matlab

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