Keithley 2461 Reference Manual

Section
8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
8-220 2461-901-01 A/November 2015
smu.source.xlimit.tripped
This attribute indicates if the source exceeded the limits that were set for the selected measurements.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (R) Yes Function change Not saved Not applicable
Usage
state = smu.source.xlimit.tripped
state
Indicates if the limit has been tripped:
• Not tripped = 0
• Tripped =
1
x
The function whose limit was tripped:
• v: voltage
•
i
: current
Details
You can use this command to check the limit state of the source.
If the limits were exceeded, the instrument clamps the source to keep the source within the set limits.
If you check the limit for the source that is not presently selected, nil is returned.
Example
print(smu.source.vlimit.tripped)
Check the state of the source limit for
voltage. If the limit was exceeded, the output
is:
smu.ON
Also see
smu.source.xlimit.level (on page 8-219)
smu.terminals
This attribute describes which set of input and output terminals the instrument is using.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
smu.TERMINALS_FRONT
Usage
terminals = smu.terminals
smu.terminals = terminals
terminals
Use the front-panel input and output terminals: smu.TERMINALS_FRONT
Use the rear-panel input and output terminals:
smu.TERMINALS_REAR

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