Keithley 2651A Reference Manual page 48

Section 2: General operation
Basic source-measure commands
Command
smua.measure.autorangei = smua.AUTORANGE_ON
smua.measure.autorangev = smua.AUTORANGE_ON
smua.measure.autorangei = smua.AUTORANGE_OFF
smua.measure.autorangev = smua.AUTORANGE_OFF
smua.measure.rangei = rangeval
smua.measure.rangev = rangeval
reading = smua.measure.i()
reading = smua.measure.v()
iReading, vReading = smua.measure.iv()
reading = smua.measure.r()
reading = smua.measure.p()
smua.source.autorangei = smua.AUTORANGE_ON
smua.source.autorangev = smua.AUTORANGE_ON
smua.source.autorangei = smua.AUTORANGE_OFF
smua.source.autorangev = smua.AUTORANGE_OFF
smua.source.func = smua.OUTPUT_DCVOLTS
smua.source.func = smua.OUTPUT_DCAMPS
smua.source.leveli = sourceval
smua.source.levelv = sourceval
smua.source.limiti = level
smua.source.limitv = level
smua.source.limitp = level
smua.source.output = smua.OUTPUT_ON
smua.source.output = smua.OUTPUT_OFF
smua.source.rangei = rangeval
smua.source.rangev = rangeval
smua.sense = smua.SENSE_LOCAL
smua.sense = smua.SENSE_REMOTE
Requesting readings
You can request readings by including the appropriate measurement command as the argument for
the print() command. The following programming example illustrates how to request a current
reading:
print(smua.measure.i())
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Model 2651A High Power System SourceMeter® Instrument Reference Manual
Description
Enable current measure autorange.
Enable voltage measure autorange.
Disable current measure autorange.
Disable voltage measure autorange.
Set current measure range.
Set voltage measure range.
Request a current reading.
Request a voltage reading.
Request a current and voltage reading.
Request a resistance reading.
Request a power reading.
Enable current source autorange.
Enable voltage source autorange.
Disable current source autorange.
Disable voltage source autorange.
Select voltage source function.
Select current source function.
Set current source value.
Set voltage source value.
Set current limit.
Set voltage limit.
Set power limit.
Turn on source output.
Turn off source output.
Set current source range.
Set voltage source range.
Local sense (2-wire).
Remote sense (4-wire).
2651A-901-01 Rev. A / March 2011