2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-121
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.measure.rel.enableY
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 Relative measurement control (on/off).
Default smuX.REL_OFF
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage rel = smuX.measure.rel.enablev -- Reads voltage relative state.
smuX.measure.rel.enablev = rel -- Writes voltage relative state.
rel = smuX.measure.rel.enablei -- Reads current relative state.
smuX.measure.rel.enablei = rel -- Writes current relative state.
rel = smuX.measure.rel.enabler -- Reads resistance relative state.
smuX.measure.rel.enabler = rel -- Writes resistance relative state.
rel = smuX.measure.rel.enablep -- Reads power relative state.
smuX.measure.rel.enablep = rel -- Writes power relative state.
rel Relative measurement control.
Set rel to one of the following values:
0 or smuX.REL_OFF Disables relative measurements.
1 or smuX.REL_ON Enables relative measurements.
Remarks • When relative measurements are enabled, all subsequent measured readings will be offset by
the specified relative offset value (see smuX.measure.rel.levelY). 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.levelY
Example Enables relative voltage measurements for SMU A:
smua.measure.rel.enablev = smua.REL_ON
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