Keithley 2651A Reference Manual page 84

Section 2: General operation
Remote configuration of the output-off function
To set 0 V output with current limit set by the smua.source.offlimiti attribute:
smua.source.offfunc = smua.OUTPUT_DCVOLTS
To set 0 A output with voltage limit set by the smua.source.offlimitv attribute:
smua.source.offfunc = smua.OUTPUT_DCAMPS
Output-off limits
You can set output-off limits for the current and voltage output-off functions using the CONFIG menu
on the Model 2651A front panel, or by using the smuX.source.offlimitY attribute from a remote
interface. This setting controls only output-off limits.
Setting the output-off limit for CURRENT (smua.source.offlimiti) specifies the the value of the
output-off limit for current; setting the output-off limit for VOLTAGE (smua.source.offlimitv)
specifies the value of the output-off limit for voltage.
Setting output-off limits
Setting output-off limits from the front panel
To configure output-off limits from the front panel:
1. Press the CONFIG key.
2. Press the OUTPUT ON/OFF control. The CONFIGURE OUTPUT A menu displays.
3. In the CONFIGURE OUTPUT A menu, select OFF-STATE to display the OUTPUT OFF STATE
A menu.
4. With the OUTPUT OFF STATE A menu displayed, select LIMIT to display the OFF LIMIT A
menu.
5. In the OFF LIMIT A menu, select CURRENT or VOLTAGE.
6. Use the left or right arrow keys or turn the navigation wheel
voltage limit, and then press the ENTER key or the navigation wheel
7. Press the EXIT key as needed to back up in the menu structure or return to the default display.
Remote configuration of output-off limits
To set the current limit in NORMAL output-off mode:
smua.source.offlimiti = iValue
To set the voltage limit in NORMAL output-off mode:
smua.source.offlimitv = vValue
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Model 2651A High Power System SourceMeter® Instrument Reference Manual
to select the desired current or
to save your settings.
2651A-901-01 Rev. A / March 2011