Keithley 2600a series, Reference Manual, Page: 444 / 696

19-122 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands Series 2600A System SourceMeter® Instruments Reference Manual
smuX.measure.rel.levelY
X = SMU channel (a or b)
Y = SMU measure function (
v, i, r or p )
Where: v = voltage, i = current, r = resistance, p = power
Attribute Offset value for relative measurements.
Default 0
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
relval = smuX.measure.rel.levelv --Reads voltage relative offset level.
smuX.measure.rel.levelv = relval --Writes voltage relative offset level.
relval = smuX.measure.rel.leveli --Reads current relative offset level.
smuX.measure.rel.leveli = relval --Writes current relative offset level.
relval = smuX.measure.rel.levelr --Reads resistance relative offset
-- level.
smuX.measure.rel.levelr = relval --Writes resistance relative offset
-- level.
relval = smuX.measure.rel.levelp --Reads power relative offset level.
smuX.measure.rel.levelp = relval --Writes power relative offset level.
relval
Relative offset value.
Remarks • When relative measurements are enabled (see
smuX.measure.rel.enableY
), all
subsequent measured readings will be offset by the specified relative offset value. Specifically,
each returned measured relative reading will be the result of the following calculation:
Relative reading = Actual measured reading – Relative offset value
Details See Rel in Section 6 .
Also see
smuX.measure.rel.enableY
Example Performs a voltage measurement and uses it as the relative offset value:
smua.measure.rel.levelv = smua.measure.v()