Instrument Control (GPIB, Serial, VISA, IVI)

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LabVIEW with Keithley 6485 picoammeter and 2410 SMU

Hi all,

 I am having an issue with the "zchk" (zero check) on the front panel of the Keithley 6485 picoammeter-I need zchk to be turned off, and I can manually do this, but when I run the labview program, it automatically turns it on and I don't recieve any results. Where could I turn off zchk in labview? I've looked through the driver, and configure measurement or configure dc current was of no assistance.  

Using:

GPIB-USB-HS

Labview 2009/Windows

Drivers: 

http://www.tek.com/specialty-instruments/6485-software/models-6485-6487-and-6514-ivi-visa-based-driv...

http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=25B255F3AA83660EE0440003BA7CCD...

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tachyonkid,

 

"Initialize.vi" that ships with the instrument library has an input named "Reset (True)".  If this is left unconnected it defaults to true and performs a soft reset of the device every time the vi runs.  Typically you want to perform this reset to make sure that the instrument is in a known state when you begin configuring and using the instrument.  Suggest you look in the communications manual for the instrument for the command that controls the particular setting.  You will probably need to create your own subvi that sets the state of zero check.

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