Section 2: Sourcing and measuring Series 2600B System SourceMeter® instrument Reference Manual
2-62 2600BS-901-01 Rev. F/August 2021
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 smuX.source.delay attribute.
Whenever the SMU makes a measurement in a sweep, it also applies any configured measurement
delays. Use the smuX.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 Triggering (on page 4-1) for more information.
Examples:
To start a sweep, use the smuX.trigger.initiate() function. Sweeps are overlapped
operations, so you can use the waitcomplete() function to suspend further operation until the
sweep is complete.
To sweep 15 source points:
smua.trigger.count = 15
To perform eight sweeps:
smua.trigger.arm.count = 8
Aborting a sweep
You can use the smuX.abort() function to terminate all overlapped operations on a
source-measure unit (SMU), including sweeps. It returns the SMU to the idle state of the remote
trigger model. See Triggering (on page 4-1) for more information.