Keithley 2450 Reference Manual page 111

Section 2: General operation Model 2450 Interactive SourceMeter® Instrument Reference Manual
Setting the output-off state
Before setting the output-off state, set the source function. The output-off state is stored with the
source function. If you change the source function, the output-off state changes to the last state you
set for that function.
Using the front panel:
1. Press the MENU key.
2. Under Source, select Settings.
3. Next to Output Off State, select the appropriate setting for your application.
4. Select HOME to return to the operating display.
Using SCPI commands:
To set the output-off state to normal, send the command:
:OUTPut:SMODe NORMal
To set the output-off state to zero, send the command:
:OUTPut:SMODe ZERO
To set the output-off state to high impedance, send the command:
:OUTPut:SMODe HIMPedance
To set the output-off state to guard, send the command:
:OUTPut:SMODe GUARd
Using TSP commands:
To set the output-off state to normal, send the command:
smu.source.offmode = smu.OFFMODE_NORMAL
To set the output-off state to zero, send the command:
smu.source.offmode = smu.OFFMODE_ZERO
To set the output-off state to high impedance, send the command:
smu.source.offmode = smu.OFFMODE_HIGHZ
To set the output-off state to guard, send the command:
smu.source.offmode = smu.OFFMODE_GUARD
2-84 2450-901-01 Rev. B/September 2013