How to use 2 channels on a keithley 2602 in parallel ?

[jean-camille]

Hello

My aim is to do 2 current measurment on the 2 channel of a 2602A Keithley (GPIB) in parallel. Is it possible ? In my program, when only one channel run there is no problem but when the second channel is engage i get this error message :

Error -1073807346 occurred at: VISA Write in Keithley 2600 Series.lvlib: Source Enable.vi Output-> measurement of I = f (V) 1.8.vi
Possible reasons:
VISA: (Hex 0xBFFF000E) session or object reference is invalid data.

I have already done research but i didn't find any answer. Thank you.

[Audrey_P]

Hi Jean-Camille,

are you using this driver : http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=19132 ?

Can you post your code?

Thank you in advance

Regards

[jean-camille]

Yes I am using this driver. Here is my code for the channel B, it's exactly the same for channel A except for the sub Vi which require specific channel.

[Dennis_Knutson]

Do you mean to say that you are attempting to run another VI at the same time for the same instrument? If so, that is not possible. GPIB does not allow that.

[jean-camille]

That is exactly what i mean to say. I thought it was possible. Thank you for the answer.