Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-99
Details
This command indicates the state of the range for the selected source. When automatic source range
is disabled, the source range is set manually.
When automatic source range is enabled, the instrument selects the range that is most appropriate
for the value that is being sourced. The output level controls the range. If you read the range after the
output level is set, the instrument returns the range that the instrument chose as appropriate for that
source level.
If the source range is set to a specific value from the front panel or a remote command, the setting for
automatic range is set to disabled.
Example
SOUR:CURR:RANG:AUTO ON
Enable the automatic source range.
Also see
:SOURce[1]:<function>:RANGe (on page 6-97)
:SOURce[1]:<function>:READ:BACK
This command determines if the instrument records the measured source value or the configured source value
when making a measurement.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Source configuration list
Save settings
Source configuration list
1 (ON)
Usage
:SOURce[1]:VOLTage:READ:BACK <state>
:SOURce[1]:VOLTage:READ:BACK?
:SOURce[1]:CURRent:READ:BACK <state>
:SOURce[1]:CURRent:READ:BACK?
<state>
Disable read back: 0 or OFF
Enable read back: 1 or ON
Details
When source readback is off, the instrument records and displays the source value you set. When
you use the actual source value (source readback on), the instrument measures the actual source
value immediately before making the device under test measurement.
Using source readback results in more accurate measurements, but also a reduction in measurement
speed.

Keithley 2461 Specifications

General

Brand	Keithley
Model	2461
Category	Measuring Instruments
Language	English