Keithley 2600B User Manual

Section
7: TSP command reference Series 2600B System SourceMeter® Instrument
Reference Manual
7-244 2600BS-901-01 Rev. C / August 2016
Details
Reading this attribute gives the output-off mode of the source. Setting this attribute configures the
SMU output-off mode.
The default sourceOffMode is smuX.OUTPUT_NORMAL. In this mode, the source function is
configured according to the smuX.source.offfunc attribute. The smuX.source.offfunc
attribute controls whether the SMU is configured as a 0 V voltage source or a 0 A current source.
When the SMU is operating as a 0 A current source, the smuX.source.offlimitv attribute sets
the voltage limit (similar to how the smuX.source.offlimiti attribute sets the current limit when
the SMU is operating as a 0 V voltage source).
When the sourceOffMode is set to smuX.OUTPUT_ZERO, the source is configured to output 0 V just
as smuX.OUTPUT_NORMAL mode with smuX.source.offfunc = smuX.OUTPUT_DCVOLTS. If the
source function is voltage, the current limit is not changed. If the source function is current, the
current limit is set to the current source level or 10 percent of the current source range, whichever is
greater.
When offmode is set to smuX.OUTPUT_HIGH_Z, the SMU opens the output relay when the output is
turned off.
Example
smua.source.offmode = smua.OUTPUT_HIGH_Z
Sets the output-off mode for SMU
channel A to open the output relay
when the output is turned off.
Also see
Output-off states (on page 2-76)
smuX.source.offfunc (on page 7-242)
smuX.source.offlimitY (on page 7-242)
smuX.source.output (on page 7-244)
smuX.source.output
This attribute sets the source output state (on or off).
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
SMU reset
Instrument reset
Recall setup
Not saved
0 (smuX.OUTPUT_OFF)
Usage
sourceOutput = smuX.source.output
smuX.source.output = sourceOutput
sourceOutput
The source's output state setting; set to one of the following values:
0 or smuX.OUTPUT_OFF: Turns off the source output
1 or smuX.OUTPUT_ON: Turns on the source output
2 or smuX.OUTPUT_HIGH_Z: Turns off the output in high Z mode (allows you to go
to high Z mode without first setting the smuX.source.offmode attribute to
smu
X
.OUTPUT_HIGH_Z)
X
Source-measure unit (SMU) channel (for example, smua.source.output applies
to SMU channel A)

Keithley 2600B Specifications

General

Brand	Keithley
Model	2600B
Category	Measuring Instruments
Language	English