Keithley 2600a series User Manual

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 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 smuX.trigger.measure.Y
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 printbuffer command to request buffer readings.
See Section 7 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
Section 10 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
Section 10
for more information.

Keithley 2600a series Specifications

General

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English