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Section 2: General operation
Model 2657A High Power System SourceMeter® Instrument Reference Manual
2-76
2657A-901-01 Rev. B/December 2012
Range programming
Range commands
The following tables summarize commands necessary to control measure and source ranges. See
the
(on page 7-1) for more details about these commands.
Measure range commands*
Command Description
smua.measure.autorangei = smua.AUTORANGE_ON
Enable current measure autorange.
smua.measure.autorangei = smua.AUTORANGE_OFF
Disable current measure autorange.
smua.measure.autorangev = smua.AUTORANGE_ON
Enable voltage measure autorange.
smua.measure.autorangev = smua.AUTORANGE_OFF
Disable voltage measure autorange.
smua.measure.lowrangei = lowrange
Set lowest I measure range for
autorange.
smua.measure.lowrangev = lowrange
Set lowest V measure range for
autorange.
smua.measure.rangei = rangeval
Select manual current measure range.
smua.measure.rangev = rangeval
Select manual voltage measure range.
(on page 2-72)
Source range and limit commands*
Command Description
smua.source.autorangei = smua.AUTORANGE_ON
Enable current source autorange.
smua.source.autorangei = smua.AUTORANGE_OFF
Disable current source autorange.
smua.source.autorangev = smua.AUTORANGE_ON
Enable voltage source autorange.
smua.source.autorangev = smua.AUTORANGE_OFF
Disable voltage source autorange.
smua.source.limiti = level
Set voltage source current limit
(compliance).
smua.source.limitv = level
Set current source voltage limit
(compliance).
smua.source.limitp = level
Set source power limit (compliance).
smua.source.lowrangei = lowrange
Set lowest I source range for autorange.
smua.source.lowrangev = lowrange
Set lowest V source range for autorange.
smua.source.rangei = rangeval
Select manual current source range.
smua.source.rangev = rangeval
Select manual voltage source range.
(on page 2-72)
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