19-118 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands Series 2600A System SourceMeter® Instruments Reference Manual
smuX.measure.interval
X = SMU channel (a or b)
Attribute Interval between multiple measurements.
Default 0
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage interval = smuX.measure.interval -- Reads measure interval.
smuX.measure.interval = interval -- Writes measure interval.
interval Set interval (in seconds) from 0 to 1.
Remarks • This attribute sets the time interval between groups of measurements when
smua.measure.count is set to a value greater than 1. The SMU will do its best to start the
measurement of each group when scheduled.
• If filtered measurements are being made, this interval is from the start of the first measurement
for the filtered reading to the first measurement for a subsequent filtered reading. Extra
measurements made to satisfy a filtered reading are not paced by this interval.
• If the SMU cannot keep up with the interval setting, measurements will be made as fast as
possible.
• The reset function sets the measure interval to 0.
Details See Section 8.
Also see smuX.measure.overlappedY, smuX.measure.Y
Example Sets measure interval for SMU A:
smua.measure.interval = 0.5
smuX.measure.lowrangeY
X = SMU channel (a or b)
Y = SMU measure function (v or i)
Where: v = voltage, i = current
Attribute Lowest measure range that will be used during autoranging.
Default
100e-9 (2601A/2602A/2611A/2612A)
100e-12 (2635A/2636A)
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage rangeval = smuX.measure.lowrangev -- Reads voltage low range.
smuX.measure.lowrangev = rangeval -- Writes voltage low range.
rangeval = smuX.measure.lowrangei -- Reads current low range.
smuX.measure.lowrangei = rangeval -- Writes current low range.
rangeval Set to the lowest voltage or current measure range.
Remarks • This attribute is used with auto-ranging to put a lower bound on the range used. Lower ranges
generally require greater settling times. By setting a low range value, measurements might be
able to be made with less settling time.
• If the instrument is set to auto range and it is on a range lower than the one specified, the range
will be changed to the range specified.
Details See Range in Section 6.
Also see smuX.measure.autorangeY
Example Sets volts low range for Model 2601A/2602A SMU A to 1V:
smua.measure.lowrangev = 1
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