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Section 7: TSP command reference
Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-198
2657A-901-01 Rev. B/December 2012
Details
This attribute controls the number of measurements taken any time a measurement is requested. When using a
reading buffer with a measure command, this attribute also controls the number of readings to be stored.
If
smu
X
.measure.count
is set to a value greater than 1, any measurement delay set by
smu
X
.measure.delay
will only occur before the first measurement, while the
smu
X
.measure.interval
controls the interval between successive measurements.
Example
smua.measure.count = 10
Sets the SMU channel A measure count to 10.
Also see
(on page 7-204)
(on page 7-211)
smuX.measure.delay
This attribute controls the measurement delay.
Type
TSP-Link
accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Instrument reset
SMU reset
Recall setup
Saved setup
smuX.DELAY_AUTO
Usage
mDelay
= smu
X
.measure.delay
smu
X
.measure.delay =
mDelay
mDelay
Set to the measurement delay value in seconds (for example, to specify an
additional 10 ms measurement delay, set the value to
0.010
)
You can also set it one of the following values:
0
or
smu
X
.DELAY_OFF
: No delay
-1
or
smu
X
.DELAY_AUTO
: Automatic delay value
X
Source-measure unit (SMU) channel (for example,
smua.measure.delay
applies
to SMU channel A)
Details
This attribute allows for additional delay (settling time) before taking a measurement. If you specify the value
instead of using the automatic delay value, the delay you specified is used regardless of the range.
The
smu
X
.DELAY_AUTO
setting causes a current range-dependent delay to be inserted when a current
measurement is requested. This happens when a current measurement command is executed, when the
measure action is being performed in a sweep, or after changing ranges during an autoranged measurement.
If
smu
X
.measure.count
is greater than 1, the measurement delay is only inserted before the first
measurement.
Example
smua.measure.delay = 0.010
Sets a 10 ms measurement delay for SMU channel A.
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