Smu.source.xlimit.level - Keithley 2450 Reference Manual

Model 2450 Interactive SourceMeter® Instrument Reference Manual

smu.source.xlimit.level

This attribute selects the source limit for measurements.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
value = smu.source.xlimit.level
smu.source.xlimit.level = value
value
x
Details
This command sets the source limit for measurements. The Model 2450 cannot source levels that exceed this
limit.
The values that can be set for this command are limited by the setting for the overvoltage protection limit.
This value can also be limited by the measurement range. If a specific measurement range is set, the limit must
be more than 0.1% of the measurement range. If you set the measurement range to be automatically selected,
the measurement range does not affect the limit.
If you change the source range to a level that is not appropriate for this limit, the source limit is changed to a limit
that is appropriate to the range and a warning is generated.
Example
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1
Also see
smu.source.protect.level
smu.source.xlimit.tripped
2450-901-01 Rev. B/September 2013
Affected by Where saved
Restore configuration Restore configuration
Instrument reset Instrument reset
Power cycle Power cycle
Source configuration list Source configuration list
Function change
The limit:
Current: -1 to 1 amps
•
Voltage: -200 to 200 volts
•
The function for which to set the limit:
Voltage: v
•
Current: i
•
(on page 8-141)
(on page 8-138)
Section 8: TSP command reference
Default value
Current: 1.05E-04
Voltage: 21
Set the source function to voltage with the
current limit set to 1 A.
8-137