Remote Relative Offset Programming - Keithley 2601B Reference Manual

Section 3: Functions and features
To establish a unique relative offset value from the front panel:
1. Press the CONFIG key and then the REL key.
2. Select the measurement function (CURRENT, VOLTAGE, OHMS, or WATTS), and then press
ENTER or the navigation wheel
3. Set the relative offset value.
4. With the relative offset value displayed, press the ENTER key or the navigation wheel
then press the EXIT (LOCAL) key to back out of the menu structure.

Remote relative offset programming

Relative offset commands
Relative offset commands are summarized in the following table.
Relative offset commands
Command*
To set relative offset values:
smuX.measure.rel.leveli = relval
smuX.measure.rel.levelp = relval
smuX.measure.rel.levelr = relval
smuX.measure.rel.levelv = relval
To enable/disable relative offset:
smuX.measure.rel.enablei = smuX.REL_OFF
smuX.measure.rel.enablep = smuX.REL_OFF
smuX.measure.rel.enabler = smuX.REL_OFF
smuX.measure.rel.enablev = smuX.REL_OFF
smuX.measure.rel.enablei = smuX.REL_ON
smuX.measure.rel.enablep = smuX.REL_ON
smuX.measure.rel.enabler = smuX.REL_ON
smuX.measure.rel.enablev = smuX.REL_ON
* smuX: For Models 2601B, 2611B, and 2635B, this value is smua (SMU Channel A); for Models
2602B, 2604B, 2612B, 2614B, 2634B, and 2636B, this value can be smua (for SMU Channel A) or
smub (for SMU Channel B).
Relative offset programming example
The programming example below performs a current measurement, uses it as the relative offset
value, and also enables current relative offset:
-- Measure and set present current value as the relative offset.
smua.measure.rel.leveli = smua.measure.i()
-- Enable current relative offset.
smua.measure.rel.enablei = smua.REL_ON
3-2
Series 2600B System SourceMeter® Instrument Reference Manual
. The present relative offset value is displayed.
Description
Set current relative offset value
Set power relative offset value
Set resistance relative offset
value
Set voltage relative offset
value
Disable current relative offset
Disable power relative offset
Disable resistance relative
offset
Disable voltage relative offset
Enable current relative offset
Enable power relative offset
Enable resistance relative
offset
Enable voltage relative offset
, and
2600BS-901-01 Rev. B / May 2013