19-140 Return to Section Topics 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.