2600AS-901-01 Rev. B / September 2008
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9-11
Series 2600A System SourceMeter® Instruments Reference Manual
Section 9: Sweep Operation
Configuring measurements during a sweep
Measurements can be performed during a sweep using the
function. When sweeps are run, measurements are stored in the specified reading buffer for later
recall. The reading buffer in which to store the readings can be specified. For example, to store
voltage readings during the sweep:
smua.trigger.measure.v(vbuffername)
smua.trigger.measure.action = smua.ENABLE
Sweep data can be recalled as follows:
•
Front panel:
Press the
RECALL
key, select the channel and buffer, and then choose
reading numbers to display using the
navigation wheel
or
cursor keys
. Recalling readings
from the reading buffer using the front panel can only be done if one of the dedicated
reading buffers is used to store the sweep data.
•
Remote:
Use the
command to request buffer readings.
for details on recalling data from the buffer.
Source and measurement delays
Whenever the SMU outputs a source value in a sweep, it also applies the programmed source
delay. The default source delay is zero seconds. Set an additional source delay using
smuX.source.delay
.
Whenever the SMU performs a measurement in a sweep, it also applies any configured
measurement delays. Use
smuX.measure.delay
to program a specific measurement delay.
The default measurement delay varies by model.
Initiating and running sweeps
In order to run a sweep, the number of sweep points to output and the number of sweeps to
perform must be configured. Use the trigger count to set the number of sweep points to output.
Use the arm count to set the number of times to perform the sweep. See
for more
information.
Example:
To sweep 15 source points:
smua.trigger.count = 15
To perform 8 sweeps:
smua.arm.count = 8
To start a sweep, use the
smuX.trigger.initiate
function. Sweeps are overlapped
operations, so you can use the
waitcomplete
function as a way to suspend further operation
until the sweep is complete.
Aborting a sweep
The
smuX.abort
command can be used to terminate all overlapped operations on a SMU,
including sweeps. It returns the SMU to the idle state of the remote trigger model. See
for more information.