Keithley 2600a series, Reference Manual, Page: 434 / 696

19-112 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands Series 2600A System SourceMeter® Instruments Reference Manual
smuX.measure.analogfilter
X = SMU channel (a or b)
(Models 2635A and 2636A only)
Attribute Controls the use of an analog filter when measuring on the lowest current ranges.
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
option = smuX.measure.analogfilter -- Reads the filter setting.
smuX.measure.analogfilter = option -- Writes the filter setting.
option
Indicates the filter setting
Where
option
is:
0
filter off
1
filter on
Remarks • This attribute engages an approximately 1Hz analog filter across the current range elements.
• The analog filter is only active when using the 1nA and 100pA measurement ranges.
Example Turns off the analog filter:
smua.measure.analogfilter = 0
smuX.measure.autorangeY
X = SMU channel (a or b)
Y = SMU measure function (
v or i )
Where: v = voltage, i = current
Attribute Measurement auto range setting.
Default
smuX.AUTORANGE_ON
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
autorange = smuX.measure.autorangei -- Reads current measure auto
-- range.
smuX.measure.autorangei = autorange -- Writes current measure auto
-- range.
autorange = smuX.measure.autorangev -- Reads voltage measure auto
-- range.
smuX.measure.autorangev = autorange -- Writes voltage measure auto
-- range.
autorange
Indicates whether measurement auto range is active.
Set
autorange
to one of the following values:
0
or
smuX.AUTORANGE_OFF
Disables measurement auto range.
1
or
smuX.AUTORANGE_ON
Enables measurement auto range.
Remarks • This attribute indicates the measurement auto range state. Its value will be
smuX.AUTORANGE_OFF
when the SMU measure circuit is on a fixed range and
smuX.AUTORANGE_ON
when it is in auto range mode.
• Setting this attribute to
smuX.AUTORANGE_OFF
puts the SMU on a fixed range. The fixed range
used will be the range the SMU measure circuit was currently using.
• Setting this attribute to
smuX.AUTORANGE_ON
puts the SMU measure circuit into auto range
mode. It will remain on its present measure range until the next measurement is requested.
Details See Range in Section 6 .
Also see
smuX.measure.rangeY
Example Enables voltage measurement autoranging for SMU A:
smua.measure.autorangev = smua.AUTORANGE_ON