Section 4: Operation
Series 2600B System SourceMeter® instrument User's Manual
4-32
2600BS-900-01 Rev. A / August 2021
To configure the output-off mode from the front panel:
1. Press the
CONFIG
key.
2. Press the
OUTPUT ON/OFF
control.
3. Select
OFF-STATE
.
4. Select
MODE
.
5. Select the output-off mode:
HI-Z
(high-impedance),
NORMAL
, or
ZERO
.
6. Press the
EXIT
key to return to the normal display.
To select the normal output-off mode over a remote interface:*
smua.source.offmode = smua.OUTPUT_NORMAL
To select the high-impedance output-off mode over a remote interface:*
smua.source.offmode = smua.OUTPUT_HIGH_Z
To select the zero output-off mode over a remote interface:*
smua.source.offmode = smua.OUTPUT_ZERO
*
smu
X
can be
smua
for channel A or
smub
for channel B
Output-off function
This setting is used only when the output is turned off and the 2600B is set to the normal output-off
mode (
smu
X
.source.offmode = smu
X
.OUTPUT_NORMAL
).
You can set the output-off function to CURRENT or VOLTAGE through the CONFIG menu on the
front panel, or by using the
smu
X
.source.offfunc
attribute from a remote interface. VOLTAGE is
the default output-off function.
When the output is turned off and the selected output-off function is VOLTAGE
(
smu
X
.source.offfunc = smu
X
.OUTPUT_DCVOLTS
):
•
The source-measure unit (SMU) sources 0 V.
•
The current limit is set by the
smu
X
.source.offlimiti
attribute (default 1 mA).
When the output is turned off and the selected output-off function is CURRENT
(
smu
X
.source.offfunc = smu
X
.OUTPUT_DCAMPS
):
•
The SMU sources 0 A.
•
The voltage limit is set by the
smu
X
.source.offlimitv
attribute (default 40 V).
When the output-off function is set to either voltage or current, the SMU may source or sink a very
small amount of power. In most cases, this source or sink power level is insignificant.
