7: TSP command reference Series 2600B System SourceMeter® Instrument
7-242 2600BS-901-01 Rev. C / August 2016
smuX.source.offfunc
This attribute sets the source function that is used (source 0 A or 0 V) when the output is turned off and the
source-measure unit (SMU) is in normal output-off mode.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes SMU reset
Instrument reset
Saved setup 1 (smuX.OUTPUT_DCVOLTS)
Usage
offfunc = smuX.source.offfunc
smuX.source.offfunc = offfunc
Set to the source function to be used when the output is off and the SMU is in
normal output-off mode. Set to one of the following values:
0 or smuX.OUTPUT_DCAMPS: Source 0 A
or
X
: Source 0 V
SMU channel (for example, smua.source.offfunc applies to SMU channel A)
Details
This attribute controls the source function used when the output is turned off and the
smuX.source.offmode is set to smuX.OUTPUT_NORMAL. Set this attribute to
smuX.OUTPUT_DCVOLTS for the source to be a 0 V source when the output is off
(smuX.source.offlimiti is used). Set it to smuX.OUTPUT_DCAMPS for the source to be a 0 A
source when the output is off (smuX.source.offlimitv is used).
This attribute is only used when the smuX.source.offmode attribute is set to
smuX.OUTPUT_NORMAL.
Example
smua.source.offfunc = smua.OUTPUT_DCVOLTS
Sets the normal output-off mode to
source 0 V when the output is
turned off for SMU channel A.
Also see
Output-off states (on page 2-76)
smuX.source.offlimitY (on page 7-242)
smuX.source.offmode (on page 7-243)
smuX.source.output (on page 7-244)
smuX.source.offlimitY
This attribute sets the limit (current or voltage) used when the source-measure unit (SMU) is in normal output-off
mode.
Type TSP-Link accessible Affected by Where saved Default value
Instrument reset
Voltage: 40 (40 V)
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