2606B System SourceMeter® Instrument Reference Manual
Section 3: Functions and features
2606B-901-01 Rev. B / May 2018
3-27
Configuring and running sweeps
Use the following topics to configure and run a sweep.
Configuring compliance limits remotely
Voltage and current limits can be configured using the
smu
X
.trigger.source.limit
Y
attribute,
which sets the sweep source limits. For example, to set the SMU A sweep limit to 10 V, execute:
smua.trigger.source.limitv = 10
Configuring end sweep actions remotely
Use the end sweep action to configure the source action at the end of the sweep. The
source-measure unit (SMU) can be programmed to return to the idle source level or hold the last
value of the sweep. Configure the end sweep action by setting the
smu
X
.trigger.endsweep.action
attribute. For example, execute the following command to
configure SMU A to return the source to the idle source level at the end of a sweep:
smua.trigger.endsweep.action = smua.SOURCE_IDLE
Configuring measurements during a sweep
You can make measurements during a sweep using the
smu
X
.trigger.measure.
Y
()
function.
When sweeps are run, measurements are stored in the specified reading buffer for later recall. You
can specify which reading buffer will store the readings. For example, to store the voltage readings
taken during the sweep:
smua.trigger.measure.v(vbuffername)
smua.trigger.measure.action = smua.ENABLE
To recall sweep data:
•
Using the virtual front panel:
Press the
RECALL
key, and then select
DATA
or
STATISTICS
.
For DATA: select the buffer, and then choose reading numbers to display using the navigation
wheel or cursor keys. For STATISTICS: select the buffer, and then choose MEAN, STD DEV,
SAMPLE SIZE, MINIMUM, MAXIMUM, or PK-PK to display using the navigation wheel or
cursor keys. Recalling readings from the reading buffer using the virtual front panel can only be
done if one of the dedicated reading buffers is used to store the sweep data.
•
Remote:
Use the
printbuffer()
function to request buffer readings.
See
(on page 3-5) for details about recalling data from the buffer.
Source and measurement delays
Whenever the source-measure unit (SMU) outputs a source value in a sweep, it also applies the
programmed source delay. The default source delay is zero (0) seconds. Set an additional source
delay using the
smu
X
.source.delay
attribute.
Whenever the SMU makes a measurement in a sweep, it also applies any configured measurement
delays. Use the
smu
X
.measure.delay
attribute to program a specific measurement delay. The
default measurement delay varies by measure range.
Initiating and running sweeps
To run a sweep, you must configure the number of sweep points to output and the number of sweeps
to perform. See
(on page 3-30) for more information.