Keithley 2461 Reference Manual

Section
6: SCPI command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
6-130 2461-901-01 A/November 2015
:SOURce[1]:SWEep:<function>:LOG
This command sets up a logarithmic sweep for a set number of measurement points.
Type Affected by Where saved Default value
Command only
Recall settings
Instrument reset
Power cycle
Save settings Not applicable
Usage
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>,
<rangeType>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>,
<rangeType>, <failAbort>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>,
<rangeType>, <failAbort>, <dual>
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>,
<rangeType>, <failAbort>, <dual>, "<bufferName>"
:SOURce[1]:SWEep:<function>:LOG <start>, <stop>, <points>, <delay>, <count>,
<rangeType>, <failAbort>, <dual>, "<bufferName>", <asymptote>
<function>
The source function:
• CURRent
•
VOLTage
<start>
The voltage or current source level at which the sweep starts:
• Current: 1 µA to 7.35 A
•
Voltage: 200 mV to 105 V
<stop>
The voltage or current at which the sweep stops:
• Current: 1 µA to 7.35 A
•
Voltage: 200 mV to 105 V
<points>
The number of source-measure points between the start and stop values of the
sweep (2 to 1e6); to calculate the number of source-
measure points in a sweep, use
the following formula:
Points = [(Stop - Start) / Step] + 1
<delay>
The delay between measurement points; default is -1, which enables autodelay, or
a specific delay value from 50 µs to 10,000 s, or 0 for no delay
<count>
The number of times to run the sweep; default is 1:
• Infinite loop: 0
•
Finite loop: 1 to 268435455
<rangeType>
The source range that is used for the sweep:
• Most sensitive source range for each source level in the sweep: AUTO
• Best fixed range: BEST (default)
•
Present source range for the entire sweep: FIXed
<failAbort>
Abort the sweep if the source limit is exceeded:
ON
(default)
Complete the sweep if the source limit is exceeded: OFF
<dual>
Determines if the sweep runs from start to stop and then from stop to start:
• Sweep from start to stop only: OFF (default)
•
Sweep from start to stop, then stop to start: ON

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