2470 High Voltage SourceMeter Instrument Reference Manual
Section 12: SCPI command reference
2470-901-01 Rev. A /
May
2019
12-89
<dual>
Determines if the sweep runs from start to stop and then from stop to start:
Sweep from start to stop only:
OFF
(default)
Sweep from start to stop, then stop to start:
ON
<bufferName>
A string that indicates the reading buffer; the default buffers (
defbuffer1
or
defbuffer2
) or the name of a user-defined buffer; if no buffer is specified,
defbuffer1
is used
Details
When the sweep is started, the instrument sources a specific voltage or current value to the device
under test (DUT). A measurement is made for each point of the sweep.
When the sweep command is sent, it clears any existing trigger models, creates a source
configuration list, and populates the trigger model. To run the sweep, initiate the trigger model.
The sweep continues until the source outputs the specified stop level. At this level, the instrument
performs another measurement and then stops the sweep.
When you specify a delay, a delay block is added to the sweep trigger model. This delay is added to
any source delay you may have set. For example, if you set 10 ms for the source delay and 25 ms for
the sweep delay, the actual delay is 35 ms.
The range type specifies the source range that is used for the sweep. You can select the following
options:
•
Auto: The instrument automatically goes to the most sensitive source range for each source level
in the sweep.
•
Best fixed: The instrument selects a single fixed source range that accommodates all the source
levels in the sweep. This avoids overshoots during sweeps.
•
Fixed: The source remains on the range that is set when the sweep is started. If a sweep point
that exceeds the capability of the source range, the source outputs the maximum level for that
range.
You cannot use a writable reading buffer to collect data from a sweep.
Example
*RST
SOUR:FUNC VOLT
SOUR:VOLT:RANG 20
SENS:FUNC "CURR"
SENS:CURR:RANG 100e-6
SOUR:SWE:VOLT:LIN 0, 10, 20, 1e-3, 1, FIXED
INIT
Reset the instrument to its
defaults.
Set the source function to voltage.
Set the source range to 20 V. Set
the measure function to current
with a range of 100
μA.
Set up a linear sweep that sweeps
from 0 to 10 V in 20 points with a
source delay of 1 ms, a sweep
count of 1, and a fixed source
range.
Start the sweep.
Also see
