Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-221
Usage
sourceLimit = smuX.source.offlimitY
smuX.source.offlimitY = sourceLimit
sourceLimit
Set to the limit to be used when the SMU is in normal output-off mode
X
Source-measure unit (SMU) channel (for example, smua.source.offlimiti
applies to SMU channel A)
Y
SMU source function (v = voltage, i = current)
Details
Setting the current limit to lower than 1 mA may interfere with operation of the contact check function. See
smuX.contact.check() and smuX.contact.r() for details.
Example
smua.source.offlimiti = 10e-3
Changes the normal output-off
mode limit to 10 mA for SMU
channel A.
Also see
smuX.contact.check() (on page 7-189)
smuX.contact.r()
(on page 7-190)
smuX.source.offfunc
(on page 7-220)
smuX.source.offmode
(on page 7-221)
smuX.source.offmode
This attribute sets the source output-off mode.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes SMU reset
Instrument reset
Recall setup
Saved setup 0 (smuX.OUTPUT_NORMAL)
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 smuX.OUTPUT_HIGH_Z: Opens the output relay when the output is turned of
X
Source-measure unit (SMU) channel (for example, smua.source.offmode
applies to SMU channel A)

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English