Keithley 6517B for measuring I-V curve

[john123141]

Dear all 

I would like to use labview for measuring I-V curve by keithley 6517b.

(Apply voltage from -1 V to 1 V as 0.01V/s, at the same time measure the current, maybe nA range)

I am a beginner of labview.

Do your guys have example code for this 

Thank you so much 

Best regards

[john123141]

I connect the Keithley 6517b with GPIB port.

[LVNinja]

Search for examples

- XY Plot

- GPIB readings

once you have something going share your code and we may be able to help you. 

[NIquist]

I would start with the driver package available for that meter:  Keithley 6517 Meter - IEEE 488.2 (GPIB) Driver for LabVIEW - National Instruments (ni.com)

There may even be examples included and I-V is pretty popular.  The 6517B is really designed for resistance but if your signals are its range, you can certainly read the voltage and current.  No idea if it can source current although it looks like it can sweep voltage at least.  I've never even heard of that product, and I've been using Keithley products for decades, so you might have trouble getting specific help.  Any chance you have an SMU that you could use instead???

[NIquist]

Here is a Keithley YouTube vid on how to do I-V with the 6517B.  You could do this and use LabVIEW to read the results from the meter's memory.  I generally prefer to control everything from LabVIEW, but this gives you an idea what commands to send so it may help.

How to Setup the Model 6517B Electrometer for a Staircase Voltage Sweep - YouTube

[john123141]

Thank you so much.

I have watched this video, but I need to read the results and record the data. So it's better to have a labview code.

Best regards

[NIquist]

I can't speak for your particular instrument, but the Keithley drivers from the NI IDN are generally very good.  You should find folders of VIs for configuration, writing commands and reading back the data.  There are often some good examples installed with these packages too.  You can find them in your LabVIEW XXXX/instr.lib folder for the device.

Here is the folder for the Keithley 2540 SMU:

Hopefully, your instrument has the same type of standard driver package.  Of course, all the VIs will also be loaded into your palette as well.  Here is my Keithley 2600 palette: