Keithley System SourceMeter 2601B, Reference Manual, Page: 100 / 864

Section 2: General operation Series 2600B System SourceMeter® Instrument Reference Manual
2-76 2600BS-901-01 Rev. B / May 2013
Sense mode selection
The sense mode can be set to use 2-wire local sensing connections (on page 2-53) or 4-wire remote
sensing connections (on page 2-54).
The default sense setting is 2-wire local.
Front panel sense mode selection
To check or change the sense mode from the front panel:
1. Press the
CONFIG
key.
2. Press the
SRC
or
MEAS
key. You can access and set the Series 2600B sense mode from either
the V-SOURCE or the V-MEAS menu items.
3. If you pressed the SRC key: select
V-SOURCE
>
SENSE-MODE
, and then press the
ENTER
key
or the navigation wheel .
If you pressed the MEAS key: select
V-MEAS
>
SENSE-MODE
, and then press the
ENTER
key
or the navigation wheel .
4. Select
2-WIRE
or
4-WIRE
as needed, and then press the
ENTER
key or the navigation wheel .
Selecting the sense from the remote interface
To select the remote sense from the remote interface:
Set the
smu X .sense
attribute to control the sense state by remote. The programming example below
illustrates how to configure the Series 2600B for 4-wire remote sensing:
smua.sense = smua.SENSE_REMOTE
The following table summarizes the commands to select the sense mode. See Remote source-
measure commands (on page 2-34) and TSP command reference (on page 7-1) for details on using
these commands.
Commands to select sense mode
Command* Description
smu X .source.output = smu X .OUTPUT_OFF Turns off the source-measure unit
(SMU) output.
smu X .sense = smu X .SENSE_LOCAL Select local (2-wire) sense.
smu X .sense = smu X .SENSE_LOCAL Select remote (4-wire) sense.
*
smu X
: 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).