Hello, I have a Keithley 6517B running and communicating with PC through GPIB. The program was initially running fine, and giving the current-noise signal against applied voltage (as programmed). But now when I run the program , it is giving an error that arises at the 6517 Reset/Preset.vi - Error 7 occurred at GPIB Write in Keithley 6517A Reset / Preset.vi How do I get rid of this error. I don't understand how suddenly an error arised when I changed nothing in the program or settings of the keithley. The keithley is configured at GPIB address 27. I am attaching the main program and the sub.VI llb file . Now when I run the main program, the graph does not show any current or noise signal, but it shows a straight line plotted along '0' along the x-axis (that is, against time or voltage) Please help.

LabVIEW

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Dear Jeff,

Sorry am very new to LabVIEW. Could you explain in simpler words as in what I have to do?

Best Regards,
Poulomi Das.
Institute for Microsystems Engineering.
University of Freiburg.
Freiburg, Germany.

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