I'm having issues using labview to conduct a voltage sweep on the keithley 2400.

I'm trying to pass sweeping voltage through a diode, and measure the resulting current in order to ensure its iv characterisitcs. I downloaded the instrument driver for the keitley, and then used the example sweep and acquire measurements vi, but i kep getting the following errors:
Instrument reports:
-113,"Undefined header"
-230,"Data corrupt or stale"
-420,"Query UNTERMINATED"
0,"No error"
Complete call chain:
Keithley 24XX.lvlib:Error Query.vi
Keithley 24XX.lvlib:Read (Multiple Points).vi
Keithley 24XX Output List and Acquire.vi
Help!! thanks!

Hi akam520,
The 2400 Series SourceMeter User's Manual has more information on these errors. Please see page B-8:
http://research.physics.illinois.edu/bezryadin/labprotocol/Keithley2400Manual.pdf
Error -113 "Undefined header" occurs when the command you sent to the instrument did not contain a recognizable command name. It's likely the syntax of one of your commands is wrong. It's possible that this command being incorrect is also propagating to cause the other errors you're seeing.
Can you try stepping through your application to see when the error gets thrown? If you can narrow down which call is throwing the error, it will be easier to compare this command against the user manual to ensure that you have the correct syntax.
I hope this helps!
Emily C
Applications Engineer
National Instruments

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Hi, I am pretty new to LabVIEW and right now I am just trying to set up a simple test (source current, measure voltage) using the Keithley 2400 and Labview 8.2
I got the driver for this instrument off of NI's website at
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=25B255F3AA83660EE0440003BA7CCD...
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Error -1074000000 occurred at Keithley 24XX.lvlib:Error Query.vi
Possible reason(s):
Instrument reports:
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Complete call chain:
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Anyone have any idea's as to what might be causing this error? Any help would be greatly appreciated
Nolan

Hello nblue:
Can you communicate with the Keithley 2400 in Measurement and Automation? Do you know if there is a query command for the instrument, if so can you test to see if you can query the instrument to make sure it is working.
Regards,
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Applications Engineer
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I'm having issues using labview to conduct a voltage sweep on the keithley 2400.

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