Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-201
Before configuring a pulse operation, configure your measure settings. Pulse operations use the
measure settings that were last defined before the pulse operation; you may get unexpected results if
you do not define the measure settings first.
When you specify a delay, a delay block is added to the pulse sweep trigger model.
A source configuration list must be created before you send this command. The name of the source
configuration list determines the name of the measure configuration list; Meas is appended to the
beginning of the name. If the name of your configuration list is greater than 28 characters, it is
truncated to include only the first 28 characters (including the prefix Meas that is added for the
measure configuration list). For example, if the source configuration list is named
CurrentPulseCustomSweepList (27 characters), the resulting measure configuration list is
named MeasCurrentPulseCustomSweepList (31 characters). If the source configuration list is
named MyLongPulseNameSweepConfigList (30 characters), the resulting measure configuration
list is MeasMyLongPulseNameSweepConfigLi (32 characters)
To run the pulse sweep, initiate the trigger model.
Example
reset()
smu.source.configlist.create("CurrPulseListSweep")
smu.source.func = smu.FUNC_DC_CURRENT
smu.source.level = 0
smu.measure.func = smu.FUNC_DC_VOLTAGE
smu.measure.range = 10
smu.source.pulse.vlimit.level = 10
smu.source.pulse.level = .5
smu.source.configlist.store("CurrPulseListSweep")
smu.source.pulse.level = .3
smu.source.configlist.store("CurrPulseListSweep")
smu.source.pulse.level = .7
smu.source.configlist.store("CurrPulseListSweep")
smu.source.pulse.level = .1
smu.source.configlist.store("CurrPulseListSweep")
smu.source.pulse.level = .6
smu.source.configlist.store("CurrPulseListSweep")
smu.source.pulsesweeplist("CurrPulseListSweep", 100e-3, smu.ON, defbuffer1, 1, 1,
0, 100e-3, smu.ON)
trigger.model.initiate()
Reset the instrument to its default settings.
Create a source configuration list called CurrPulseListSweep.
Set the source function to current, the source current range to 1 A.
Set the measure function to voltage, the measure range to 10 V and the source pulse limit to 10 V.
Set the source current level to 500 mA and save the source settings to CurrPulseListSweep.
Set the source current level to 300 mA and save the source settings to CurrPulseListSweep.
Set the source current level to 700 mA and save the source settings to CurrPulseListSweep.
Set the source current level to 100 mA and save the source settings to CurrPulseListSweep.
Set the source current level to 600 mA and save the source settings to CurrPulseListSweep.
Sets up a pulse sweep that uses the entries from CurrPulseListSweep. Set a pulse width of 100 ms and
an off time of 100 ms. Start the sweep at index 1 and save the measure results to defbuffer1.
Set a source delay of 1 ms.
Start the pulse sweep.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV