Keithley 2601B Reference Manual

Section
7: TSP command reference Series 2600B System SourceMeter® Instrument
Reference Manual
7-224 2600BS-901-01 Rev. B / May 2013
Details
Use the smuX.source.limiti attribute to limit the current output of the voltage source. Use
smuX.source.limitv to limit the voltage output of the current source. The SMU always uses autoranging for
the limit setting. Use the smuX.source.limitp attribute to limit the output power of the source.
This attribute should be set in the test sequence before the turning the source on.
Using a limit value of 0 results in error code 1102, "Parameter too small," for v and i. Setting this attribute to
zero disables power compliance for p. When setting the power compliance limit to a nonzero value, the SMU
adjusts the source limit where appropriate to limit the output to the specified power. The SMU uses the lower of
the programmed compliance value (the compliance level that would be used if power compliance were disabled)
or the limit calculated from the power compliance setting.
Reading this attribute indicates the presently set compliance value. Use smuX.source.compliance to read
the state of source compliance.
Example
smua.source.limitv = 30
Sets the voltage limit of SMU
channel A to 30 V.
Also see
DUT test connections (on page 2-48)
smuX.source.compliance (on page 7-219)
smuX.source.func (on page 7-221)
smuX.source.output (on page 7-228)
smuX.source.lowrangeY
This attribute sets the lowest source range that will be used during autoranging.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
SMU reset
Instrument reset
Recall setup
Saved setup
Voltage:
Models 2601B/2602B/2604B: 100e-3 (100 mV)
Models 2611B/2612B/2614B/2634B/2635B/2636B:
200e-3 (200 mV)
Current:
Models 2601B/2602B/2604B/2611B/2612B/2614B:
100e-9 (100 nA)
Models 2634B/2635B/2636B: 1e-9 (1 nA)
Usage
sourceRangeLow = smuX.source.lowrangeY
smuX.source.lowrangeY = sourceRangeLow
sourceRangeLow
Set to the lowest voltage (in volts) or current (in amperes) range to be used
X
Source-measure unit (SMU) channel (for example, smua.source.lowrangev
applies to SMU channel A)
Y
SMU source function (v = voltage, i = current)

Keithley 2601B Specifications

General

Brand	Keithley
Model	2601B
Category	Measuring Instruments
Language	English