Output Subsystem; Output[1]:<Function>:Smode - Keithley 2450 Reference Manual

Model 2450 Interactive SourceMeter® Instrument Reference Manual

OUTPut subsystem

The output subsystem provides information and settings that control the output of the selected
source.
:OUTPut[1]:<function>:SMODe
This command defines the state of the source when the output is turned off.
Type
Command and query
Usage
:OUTPut[1]:<function>:SMODe <state>
:OUTPut[1]:<function>:SMODe?
<function>
<state>
Details
This command sets the state of the output when the source is off for the selected function.
When the Model 2450 is set to the normal output-off state, the following settings are made when the source is
turned off:
• The measurement sense is set to 2-wire
• The voltage source is selected and set to 0 V
• The current limit is set to 10 percent of the full scale of the present current range
• OUTPUT OFF is displayed in the Home page Source area
• The Source button on the Home page shows the output that will be sourced when the output is turned
on again
When the high-impedance output-off state is selected and the output is turned off:
• The measurement sense is set to 2-wire
• The output relay opens, disconnecting the instrument as a load
Opening the relay disconnects external circuitry from the inputs and outputs of the instrument. To prevent
excessive wear on the output relay, do not use this output-off state for tests that turn the output off and on
frequently.
The high-impedance output-off state should be used when the instrument is connected to a power source or
another source-measure instrument. In some cases, it may also be appropriate for devices such as capacitors.
2450-901-01 Rev. B/September 2013
Affected by
Recall settings
Instrument reset
Power cycle
Source configuration list
The function to which this setting applies:
Current: CURRent[:DC]
•
Voltage: VOLTage[:DC]
•
See the Details below for specifics regarding each of the following options:
NORMal
•
HIMPedance
•
ZERO
•
GUARd
•
Section 6: SCPI command reference
Where saved
Save settings
Source configuration list
Default value
NORM
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