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19-140
Return to
2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands
Series 2600A System SourceMeter® Instruments Reference Manual
smuX.trigger.
a
Remarks
• Using
smuX.SETTLE_FAST_RANGE
may cause the SMU to exceed the range change overshoot
specification.
•
smuX.SETTLE_FAST_POLARITY
does not go to zero when changing polarity and may create
inconsistencies at the zero crossing.
•
smuX.SETTLE_DIRECT_IRANGE
switches the SMU directly to the target range instead of the
default “range-by-range” method. This option is mutually exclusive of any other
smuX.
SETTLE_FAST_*
commands.
•
smuX.SETTLE_SMOOTH_100NA
is disabled by default in Models 2602A and 2612A. In Model
2636A, it is always enabled.
Example
Selects fast polarity changing for SMU A:
smua.source.settling = smua.SETTLE_FAST_POLARITY
smuX.source.sink
X = SMU channel (a or b)
Attribute
The SMU sink mode.
Default
smuX.DISABLE
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
sink = smuX.source.sink
-- Reads the sink mode.
smuX.source.sink = sink
-- Writes the sink mode.
sink
The sink mode.
Set
sink
to one of the following values:
1
or
smuX.ENABLE
Turns on source sink.
0
or
smuX.DISABLE
Turns off sink source.
Remarks
• Sink mode reduces the source limit inaccuracy seen when operating in quadrants II and IV.
• When sink mode is active, quadrants I and III will show this source limit inaccuracy.
Example
Activate sink mode for SMU A:
smua.source.sink = smua.ENABLE
smuX.trigger.arm.count
X = SMU channel (a or b)
Attribute
Sets the arm count in the trigger model.
Default
1
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
count = smuX.trigger.arm.count
smuX.trigger.arm.count = count
count
The arm count.
Remarks
• During a sweep, the SMU will iterate through the arm layer of the trigger model this many times.
After performing this many iterations, the SMU will return to idle.
• If this count is set to zero, the SMU will stay in the trigger model indefinitely (or until aborted).
• The reset value for this attribute is 1.