Smu.source.xlimit.level - Tektronix Keithley SourceMeter 2470 Reference Manual

2470 High Voltage 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 values that can be set for this
command are limited by the setting for the overvoltage protection limit.
The 2470 cannot source levels that exceed this limit.
If you change the measure range to a range that is not appropriate for this limit, the instrument
changes the source limit to a limit that is appropriate to the range and a warning is generated.
Depending on the source range, your actual maximum limit value could be lower. The instrument
makes adjustments to stay in the operating boundaries.
This value can also be limited by the measurement range. If a specific measurement range is set,
the limit must be more than or equal to 10.6% of the measurement range. If you set the
measurement range to be automatically selected, the measurement range does not affect the limit.
Limits are absolute values.
You can use smu.source.xlimit.tripped to check the limit state of the source output.
Example
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1
Also see
smu.source.protect.level
smu.source.xlimit.tripped
2470-901-01 Rev. A / May 2019
Affected by Where saved
Restore configuration Configuration script
Instrument reset Source configuration list
Power cycle
Source configuration list
Function change
The limit:

Current source function: -1.05 A to 1.05 A

Voltage source function: -1100 V to 1100 V
The function for which to set the limit:

Voltage: v

Current: i
(on page 14-164)
(on page 14-178)
Section 14: TSP command reference
Default value
Voltage: 105 µA
Current: 21 V
Set the source function to voltage with the
current limit set to 1 A.
14-177