Section 8: TSP command reference Model 2461 Interactive SourceMeter® Instrument Reference Manual8-170 2461-901-01 A/November 2015smu.measure.rel.enableThis attribute enables or disables the application of a relative offset value to the measurement.Type TSP-Link accessible Affected by Where saved Default valueAttribute (RW) Yes Restore configurationInstrument resetPower cycleMeasure configuration listFunction changeConfiguration scriptMeasure configuration listsmu.OFFUsagerelEnable = smu.measure.rel.enablesmu.measure.rel.enable = relEnablerelEnable Relative measurement control:• Disable relative offset: smu.OFF• Enable relative offset: smu.ONDetailsWhen relative measurements are enabled, all subsequent measured readings are offset by therelative offset value calculated when you acquire the relative offset value.Each returned measured relative reading is the result of the following calculation:Displayed reading = Actual measured reading - Relative offset valueExamplesmu.measure.func = smu.FUNC_DC_VOLTAGErel_value = smu.measure.rel.acquire()smu.measure.rel.enable = smu.ONAcquires a relative offset level value for voltagemeasurements and turns the relative offsetfeature on.Also seeRelative offset (on page 3-79)smu.measure.rel.acquire() (on page 8-169)smu.measure.rel.level (on page 8-171)