VISA Resource name have no pop up menu

[MViControl]

All,

I have sucessfully installed Agilent 82530B GPIB card in my system, and I enabled VISA for LabVIEW, I can operate this card in NI-MAX, but when I want to select this card, I suddenly found that the "VISA Resource name" have no pop up menu any more. before I install the GPIB card, the "VISA Resource name" can list all ports in the system.

Any one have ideas about how to solve this issue?

Thx in advance.

[Francois Normandin]

There should be a Menu Button that you can show/hide with a right-click (select Visible Items).

The drop-down list will then display all available VISA resources.

(Or it could be that your VISA class is not set for Instruments.)

[MViControl]

  On 11/10/2009 at 6:00 PM, François Normandin said:

There should be a Menu Button that you can show/hide with a right-click (select Visible Items).

The drop-down list will then display all available VISA resources.

(Or it could be that your VISA class is not set for Instruments.)

I think you misunderstand my point. here the problem is that I have the menu in the control, but when I click menu, there are no any item in the menu except "fresh"

[Francois Normandin]

So you're not seeing at least the COM ports...

Apart from VISA class, I'm sorry to say I'm at a lost of an explanation.

[crelf]

  On 11/10/2009 at 11:49 PM, Techie said:

I think you misunderstand my point. here the problem is that I have the menu in the control, but when I click menu, there are no any item in the menu except "fresh"

Can you please upload a screen shot of your port listing in MAX and a screenshot of the dropdown on your control?

[MViControl]

  On 11/11/2009 at 2:34 AM, François Normandin said:

So you're not seeing at least the COM ports...

Apart from VISA class, I'm sorry to say I'm at a lost of an explanation.

Yes, I see nothing except the "fresh", but I can see & operate "serial port", "GPIB" in MAX sucessfuly.

  On 11/11/2009 at 2:59 AM, crelf said:

Can you please upload a screen shot of your port listing in MAX and a screenshot of the dropdown on your control?

here is VISA Resource name when I click the menu button:

[crelf]

  On 11/11/2009 at 3:12 AM, Techie said:

here is VISA Resource name when I click the menu button:

What about the port listing in MAX?

Actually - I have an idea: can you please upload the VI that you're having the issues with (or, at least, a new VI with that control copied into it)?

[MViControl]

  On 11/11/2009 at 3:39 AM, crelf said:

What about the port listing in MAX?

Actually - I have an idea: can you please upload the VI that you're having the issues with (or, at least, a new VI with that control copied into it)?

I tested my code in another PC which have same configuration with the one have problem, the vi works fine.

[Francois Normandin]

  On 11/10/2009 at 5:06 PM, Techie said:

I have sucessfully installed Agilent 82530B GPIB card in my system, and I enabled VISA for LabVIEW...

Which version of VISA drivers are you using at the moment?

Have you tried to reinstall the latest drivers? (v4.6 Run Time or Full)

[ooth]

  On 11/11/2009 at 3:12 AM, Techie said:

Yes, I see nothing except the "fresh", but I can see & operate "serial port", "GPIB" in MAX sucessfuly.

here is VISA Resource name when I click the menu button:

This is just a thought. Sometimes this happens to me and it's because the GPIB card is loose in the PCI slot. Once I push it back in the VISA works. I know you said that you can communicate with MAX which would mean that the GPIB card is working, so I'm not too sure if this is your problem.

[MViControl]

  On 11/11/2009 at 1:01 PM, François Normandin said:

Which version of VISA drivers are you using at the moment?

Have you tried to reinstall the latest drivers? (v4.6 Run Time or Full)

I use NI-VISA 4.5.1, I will try to reinstall the driver, hope it works.

  On 11/11/2009 at 1:16 PM, ooth said:

This is just a thought. Sometimes this happens to me and it's because the GPIB card is loose in the PCI slot. Once I push it back in the VISA works. I know you said that you can communicate with MAX which would mean that the GPIB card is working, so I'm not too sure if this is your problem.

I tryed already, it do not help, I think I should try to reinstall NI-VISA.

[crelf]

  On 11/11/2009 at 5:23 AM, Techie said:

I tested my code in another PC which have same configuration with the one have problem, the vi works fine.

Well, I'm stumped

[MViControl]

  On 11/11/2009 at 5:47 PM, crelf said:

Well, I'm stumped

After Reinstall the NI-VISA, everything fine now:=)

[Clio75]

  On 11/13/2009 at 12:09 PM, Techie said:

After Reinstall the NI-VISA, everything fine now:=)

Had simular problems. Solved by restarting the computer.

Have olso seen that I missing com/GPIB instrumets in the drop down menu. Some times I need to start Max, sometimes I must restart LW, and in worst cases I needed to restart computer

Edited November 13, 2009 by Clio75

[crelf]

  On 11/13/2009 at 12:09 PM, Techie said:

After Reinstall the NI-VISA, everything fine now:=)

Doh!

[Francois Normandin]

  On 11/13/2009 at 4:27 PM, crelf said:

Doh!

That makes me remember this old joke: "If your car stops working and you don't know why, try shutting down the *Windows* and opening them again before you call the garage."