labview not able to communicate wit the pickering card 40-575

[bibo702]

 Hi everyone , 

 i am working  with a pickering 40-575 matrix  and labview .  M y problem is that the labview  programm is able to read the pickering card and works properly on windows cp . But when i chaged  to windows 7  , the labview programm  couldnt read/ communicate with the Pickering card . 

( on the Pickering card are 3 resistance , and the labview prog. is supposed to show the graph tension / voltage ) 

Any help is welcome ,

Thanks ! 

habib 

[Sam_Sharp]

What error message are you getting?

Sounds to me like a driver/configuration issue - how do you communicate with the pickering card? If it's via serial/RS-232, you will need to install the NI VISA drivers and select the appropriate serial (COM) port for communications.

[crossrulz]

It definately sounds like a driver issue.  Which driver are you using?  There are 3 choices with the 40 series cards.

I would recommend you take your questions to Pickering.

[bibo702]

'' Overflow MΩ'' is the message that i get from Keithley when the relay is connected .   NI MAX is allready installed on the computer  and it schows that the pickering card  40-575 is normally connected . 

[crossrulz]

Which driver are you using for your code?  If you are using the IVI driver, you have more to set up.

[bibo702]

The problem is that the labview programm does not find the relay card when  Keithley is on. and i get this message error on keithley's Display : "Overflow MΩ''
However ,When Keithley is off the prog. does find the relay card.
This problem didnt occur when the prog was runnig on Windows Xp  . 

What do you mean which driver for my code ?  the prog  just had been with labview programmed . 

[bibo702]

hi !  

 I am using the pickering driver  .  What  are the set up i have to do when i am using IVI driver ?

Regards . 

[bibo702]

Rectification :The communication with pickering card happens through visa and driect IO .