Keithley 2461 Reference Manual

Section
6: SCPI command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
6-224 2461-901-01 A/November 2015
:TRIGger:LOAD "DurationLoop"
This command loads a predefined trigger model configuration that makes continuous measurements for a
specified amount of time.
Type Affected by Where saved Default value
Command only
Not applicable
Not applicable
Not applicable
Usage
:TRIGger:LOAD "DurationLoop", <duration>
:TRIGger:LOAD "DurationLoop", <duration>, <delay>
:TRIGger:LOAD "DurationLoop", <duration>, <delay>, "<readingBuffer>"
:TRIGger:LOAD "DurationLoop", <duration>, <delay>, "<readingBuffer>",
<readingBlock>
<duration>
The amount of time for which to make measurements (167 ns to 100 ks)
<delay>
The delay time before each measurement (167 ns to 10 ks); default is 0 for
no delay
<readingBuffer>
A string that indicates the reading buffer; the default buffers (defbuffer1
or defbuffer2) or the name of a user-defined buffer; if no buffer is
specified,
defbuffer1
is used
<readingBlock>
Define a measure or digitize block for the trigger model; options are:
• ACTive: Add a measure or digitize block to the trigger model based
on the active function; if no option defined, ACTive is used
• MEASure: Adds a measure block to the trigger model
•
DIGitize: Adds a digitize block to the trigger model
Details
When you load this predefined trigger model, you can specify amount of time to make a
measurement and the length of the delay before the measurement.
After selecting a trigger model template, you can view the trigger model blocks in a graphical format
by pressing the front-panel MENU key and under Trigger, selecting Configure. You can also add or
delete blocks and change trigger model settings from this screen. You can use the
TRIGger:BLOCk:LIST? command to view the trigger model blocks in a list format.
This command replaces the TRIGger:LOAD:LOOP:DURation command, which is deprecated.
Example
*RST
SOUR:FUNC VOLT
SOUR:VOLT 5
SENS:FUNC "CURR"
TRIG:LOAD "DurationLoop", 10, 0.01
INIT
Reset the instrument. Set the instrument to
source voltage at 5 V. Set to measure current.
Load the Duration Loop trigger model to take
measurements for 10 s with a 10 ms delay
before each measurement.
Start the trigger model.
Also see
None

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