Keithley 2461 Reference Manual

Mod
el 2461 Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-103
:SOURce[1]:LIST:<function>:POINts?
This command queries the length of the source list for the selected source function.
Type Affected by Where saved Default value
Query only
Not applicable
Not applicable
Not applicable
Usage
:SOURce[1]:LIST:CURRent:POINts?
:SOURce[1]:LIST:VOLTage:POINts?
Details
This command returns the length of the specified source list. The response message indicates the
number of source values in the list.
Example
*RST
SENS:FUNC "CURR"
SENS:CURR:RANG:AUTO ON
SENS:CURR:RSEN OFF
SOUR:FUNC VOLT
SOUR:VOLT:RANG 20
SOUR:VOLT:ILIM 1
SOUR:LIST:VOLT 1, 5, 1, 5, 1, 5
SOUR:SWE:VOLT:LIST 1, 0.2
INIT
*WAI
TRAC:DATA? 1, 6, "defbuffer1", SOUR, READ
SOUR:LIST:VOLT:POIN?
This example will source 1 V, 5 V, 1 V, 5 V,
1 V, 5 V and measure the resulting current
at each voltage point. The time duration of
each voltage point is 200 ms.
Check the number of points in the list.
Output:
6
Also see
:SOURce[1]:LIST:<function> (on page 6-101)
:SOURce[1]:LIST:<function>:APPend (on page 6-102)

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