Keithley 2611B Reference Manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7:
TSP command reference
2600BS-901-01 Rev. B / May 2013 7-227
Usage
sourceOffMode = smuX.source.offmode
smuX.source.offmode = sourceOffMode
sourceOffMode
The output-off setting; set to one of the following values:
0 or smuX.OUTPUT_NORMAL: Configures the source function according to
smuX.source.offfunc attribute
1 or smuX.OUTPUT_ZERO: Configures source to output 0 V as
smuX.OUTPUT_NORMAL with different compliance handling (see the Details below)
2
or
smu
X
.OUTPUT_HIGH_Z
: Opens the output relay when the output is turned off
X
Source-measure unit (SMU) channel (for example, smua.source.offmode
applies to SMU channel A)
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 2-77)
smuX.source.offfunc (on page 7-225)
smuX.source.offlimitY (on page 7-226)
smuX.source.output (on page 7-228)

Keithley 2611B Specifications

General

Brand	Keithley
Model	2611B
Category	Measuring Instruments
Language	English