Keithley 2010 resistance measurement via LabVeiw 8.5

[only-serge]

Hello!

I have Keithley 2010 multimeter and I want to measure resistance with it under LabVeiw 8.5. I download needed configs from official web-site. It almost works, however there is one problem. After each resistance measurement multimeter switch to the voltage mode. It's look like: resistance measurement ->voltage mode ->resistance mode->resistance measurement ->voltage mode->resistance mode->... So it mesuare once per second or less. It's not enough fast for me, I need something about 10 times per second. Could you please help me? 

Thanks in advance!

Sergey

P.S. http://forums.ni.com/t5/LabVIEW/Fast-readings-with-Keithley-2010-Multimeter/m-p/91867 - doesn't help 😞

[Omar_II]

Without seeing your code, I suspect that you are using some "canned" setup-read vi that is including an instrument reset also.

Most meters default to DC Volts on reset.

What is going on down inside the stuff you got off the web?

[only-serge]

Thanks for your reply!

Yes, it is looking like an instrument reset.

So question is how to escape it or how to change default settings to resistance measurement?

Also I am full zero in LabVeiw and it is a problem... a big problem. 

Now I am using an original "Keithley 2010 2-W Res Config.vi". You can find it in attached library.

Sorry I don't now how to attach this file only.

[Omar_II]

I would advise using drivers that use VISA instead of the VI you found on the WEB.

Lookup VISA in the LabVIEW manual

Lookup the SCIP commands in the Keithley manual

• Open a VISA ref to your Keithley meter
• Do a VISA Write ":CONFigure:RESistance"
• Do a VISA Write ":Read?"
• Do a VISA Read to read in your measurement.

Once it is configured you can loop sending the ":Read?" command followed by reading the reply.

I think the Keithley can even be set to take multiple readings, but you will have to read the manual to see for sure.

[only-serge]

Thank you!

I will try to do it tomorrow.

[only-serge]

I received this answer on Keithley forum: 

*RST
:SENSE:FUNC 'RES'
:SENSE:RES:RANGE 10
:SENSE:RES:NPLC 0.01
:SENSE:RES:AVER:STATE OFF
For I = 1 to 100
:READ?
Now read the unit with a VISA READ
Next I

So I used SCIP commands via VISA WRITEs, and it helped me.

Best regards and thanks,

Sergey