Keithley 2461 Reference Manual

Section
8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
8-206 2461-901-01 A/November 2015
xBiasLimit
The current or voltage limit for the defined bias level:
• Current: 10 nA to 7.35 A
•
Voltage: 2 mV to 105 V
xPulseLimit
The current or voltage limit for the defined pulse level:
• Current: 10 nA to 10.5 A
•
Voltage: 2 mV to 105 V
failAbort
Determines if the pulse train is stopped immediately if a limit is exceeded; options
are:
• Abort the pulse train if the source pulse limit is exceeded: ON (default)
•
Complete the pulse train if the source limit is exceeded: OFF
Details
Use this command to set up and configure settings for a pulse train.
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.
The bias level must be within the normal DC operating area (not the extended area) of the operating
boundaries. It must be low enough that it does not exceed the power settings defined by the bias limit
and pulse limit parameters. For more information about the Model 2461 operating boundaries, see
Operating boundaries (on page 4-4).
The pulse level is not limited to the normal operating area; it can be set to any value within the
operating boundaries. When the pulse level is set to a value in the extended operating area, the pulse
width is limited.
The bias limit is limited to the normal operating area and is affected by either the maximum pulse
level or bias level setting, whichever is greater in magnitude.
The pulse limit is not limited to the normal operating area.
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
VoltagePulseTrainSweepList (26 characters), the resulting measure configuration list is named
MeasVoltagePulseTrainSweepList (30 characters). If the source configuration list is named
MyLongPulseNameSweepConfigList (30 characters), the resulting measure configuration list is
MeasMyLongPulseNameSweepConfigLi (32 characters).
Example
reset()
smu.source.func = smu.FUNC_DC_CURRENT
smu.source.readback = smu.ON
smu.digitize.func = smu.FUNC_DIGITIZE_VOLTAGE
smu.digitize.range = 20
smu.digitize.samplerate = 25000
smu.source.pulsetrain("DigitizeTrain", -1, -3, 10e-3, 3, smu.ON, defbuffer1, 0,
90e-3, 15, 15)
trigger.model.initiate()

Keithley 2461 Specifications

General

Brand	Keithley
Model	2461
Category	Measuring Instruments
Language	English