Smux.source.offfunc - Keithley 2601B Reference Manual

Series 2600B System SourceMeter® Instrument Reference Manual
Details
This attribute is used with source autoranging to put a lower bound on the range that is used. Lower ranges
generally require greater settling times. If you set a low-range value, you might be able to source small values
with less settling time.
If the instrument is set to autorange and it is on a range lower than the one specified by sourceRangeLow, the
source range will be changed to the range specified by sourceRangeLow.
Example
smua.source.lowrangev = 1
Also see
smuX.source.autorangeY

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
Attribute (RW) Yes
Usage
offfunc = smuX.source.offfunc
smuX.source.offfunc = offfunc
offfunc
X
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
2600BS-901-01 Rev. B / May 2013
(on page 7-217)
Affected by
SMU reset
Instrument reset
Recall setup
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
1 or smuX.OUTPUT_DCVOLTS: Source 0 V
SMU channel (for example, smua.source.offfunc applies to SMU channel A)
Section 7: TSP command reference
Sets volts low range for Models
2601B/2602B/2604B SMU A to 1
V. This prevents the source from
using the 100 mV range when
sourcing voltage.
Where saved Default value
Saved setup 1 (smuX.OUTPUT_DCVOLTS)
Sets the normal output-off mode to
source 0 V when the output is
turned off for SMU channel A.
7-225