Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-199
:TRIGger:BLOCk:DELay:CONStant
This command adds a constant delay to the trigger model.
Type Affected by Where saved Default value
Command only
Recall settings
Instrument reset
Power cycle
Save settings
Not applicable
Usage
:TRIGger:BLOCk:DELay:CONStant <blockNumber>, <time>
<blockNumber>
The sequence of the block in the trigger model
<time>
The amount of time to delay (167 ns to 10,000 s, or 0 for no delay)
Details
When trigger model execution reaches a delay block, it stops normal measurement and trigger model
operation for the amount of time set by the delay. Background measurements continue to be made,
and if any previously executed block started infinite measurements, they also continue to be made.
This delay waits for the set amount of delay time to elapse before proceeding to the next block in the
trigger model.
If other delays have been set, this delay is in addition to the other delays.
Example
SOUR:CONF:LIST:CRE "ampLevel"
SOUR:CONF:LIST:CRE "biasLevel"
SOUR:FUNC VOLT
SENS:FUNC "CURR"
SOUR:VOLT:LEV 5
SOUR:CONF:LIST:STORE "ampLevel"
SOUR:VOLT:LEV 0
SOUR:CONF:LIST:STORE "biasLevel"
TRIG:BLOC:SOUR:STATE 1, ON
TRIG:BLOCK:CONF:RECALL 2, "ampLevel", 1
TRIG:BLOC:DEL:CONS 3, 0.1
TRIG:BLOCK:MEAS 4
TRIG:BLOCK:CONF:RECALL 5, "biasLevel", 1
TRIG:BLOCK:DEL:CONS 6, 0.2
TRIG:BLOCK:BRAN:COUN 7,19,2
INIT
Create configuration lists named ampLevel and
biasLevel.
Set the source function to 5 V and the
measurement function to current.
Store the settings in the ampLevel configuration
list at index 1.
Set the voltage level to 0 V.
Store the setting in the biasLevel configuration
list at index 1.
Set block 1 to turn the source output on.
Set block 2 to recall the ampLevel settings from
index 1.
Set block 3 to provide a constant delay of 0.1 s.
Set block 4 to make a measurement.
Set block 5 to recall the biasLevel settings at
index 1.
Set block 6 to provide a constant delay of 0.2 s.
Set block 7 to repeat block 2 nineteen times.
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