19-114
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2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands
Series 2600A System SourceMeter® Instruments Reference Manual
smuX.measure.calibrateY
X = SMU channel (a or b)
Y = SMU measure function (
v
or
i
)
Where:
v
= voltage,
i
= current
Function
Generates and activates new measurement calibration constants.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage
smuX.measure.calibratev(range, cp1measured, cp1reference, cp2measured,
cp2reference)
smuX.measure.calibratei(range, cp1measured, cp1reference, cp2measured,
cp2reference)
range
The measurement range to calibrate.
cp1measured
The value measured by this SMU for calibration point 1.
cp1reference
The reference measurement for calibration point 1 as
measured
externally.
cp2measured
The value measured by this SMU for calibration point 2.
cp2reference
The reference measurement for calibration measured
externally.
Remarks
• This function generates and activates new calibration constants for the given range. The positive
and negative polarities of the instrument must be calibrated separately. Use a positive value for
range
to calibrate the positive polarity and a negative value for
range
to calibrate the negative
polarity.
• Typically the two calibration points used will be near zero for calibration point 1 and 90% of full-
scale for calibration point 2.
• All four measurements (
cp1measured
,
cp1reference
,
cp2measured
, and
cp2reference
)
must
be made with the active calibration set. Corruption of the calibration constants may result if
this is not heeded.
• The new calibration constants will be activated immediately but they will not be written to
nonvolatile storage. Use
smuX.cal.save
to commit the new constants to nonvolatile storage.
The active calibration constants will stay in effect until the instrument is power cycled or a
calibration set is loaded from nonvolatile storage with the
smuX.cal.restore
function.
• This function will be disabled until a successful call to
smuX.cal.unlock
is made.
Details
See
Also see
smuX.measure.count
X = SMU channel (a or b)
Attribute
Number of measurements performed when a measurement is requested.
Default
1
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
count = smuX.measure.count
-- Reads measure count.
smuX.measure.count = count
-- Writes measure count.
count
Number
of
measurements.
Remarks
• This attribute controls the number of measurements taken any time a measurement is
requested. When using a reading buffer with a measure command, the
count
also controls the
number of readings to be stored.
• The
reset
function sets the measure count to 1.
Details
See
.
Also see
,
Example
Sets measure count for SMU A:
smua.measure.count = 10
