keithley 2400

[Fbra]

Please, I need to control a Keithley 2400 sourcemeter. (Source I and Measure V)

But, I have problems in measure more points and indicate the time between this measures and in format of this measures.

Thank you!

I wait for anwser.

[Will.D]

If you post your code, with a detailed description of what you're looking to do, we'd be better equipped to help.  It sounds like you're just having trouble with timing and formatting, but it's hard to know how to help without seeing what you've done already.

[mischi_miyagi]

Hi,
maybe you should use the search function first, next time...
look for example here http://forums.ni.com/ni/board/message?board.id=170&message.id=208129#M208129
This should answer the most questions...I had also a lot of trouble with it...

The 2400 is a little bit tricky to program...as you can see in my link above, but it's very flexible. Normally, you can determine the time between measurements by :SOUR: DEL, or you can play  around a little bit with :TRIG ...if you trigger the instrument. Do you want to source a sweep or just a constand current? What do you mean by "format of this measures"?

And by the way, you should read the 2400 manual carefully... And you should browse Keithley's website for programming examples, even if some are not for Labview explicitely you will understand them easily...

Mike

Message Edited by mischi_miyagi on 10-03-2006 03:04 PM

[Fbra]

Hi,

Thank you for attention!

Sorry but I can´t saw this example because I have Labview 8.0.

I could it be the problem that I'm writing simultaneously to the gpib. How did you kill this problem?

I want to source a constant current and mesuare a lot of voltage points as a function of the time.

I am working in solution these problems and with your help I do it. 

I will post my code for your analysis.

Greets,

Fred

[mischi_miyagi]

Message Edited by mischi_miyagi on 10-03-2006 04:11 PM

[mischi_miyagi]

Ooops, doubled the post...

Ok, these files should work for you...

The read out can be done in different ways: You can write into the buffer and than read it out once, or you can loop the read out with :TRAC:SENSE? when I'm remembering correctly. At the moment I haven't got the manuals here...You should really have a look at the keithley site, I think they got an example for a very similar task...
Are you using the Labview drivers from Keithley?

Michi

Message Edited by mischi_miyagi on 10-03-2006 04:12 PM

[Fbra]

Michi, in my case I don´t use VISA, I use GPIB. There are many differences?

Does you prefer use drivers from Keithley?

I don´t know, what does you think it is the better to programmer?

I am using the keithley drivers, but not for all program.

[mischi_miyagi]

Hi,
it doesn't make a big difference if you use VISA or GPIB in your case.
If you stay with only measuring V and sourcing I then you're fine with the Labview drivers.If you want to implement more complex things, like sweeping with different ramping functions etc. you should program your own drivers comunicating with your own SCPI command sequence.
So, just upload your VI and I will see what I can help you with...and since I'm living in germany, I'm going to bed now...

Mike