Smux.source.rangey - Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Example
smua.source.outputenableaction = smua.OE_OUTPUT_OFF
Also see
smuX.source.offmode
smuX.source.output

smuX.source.rangeY

This attribute contains the source range.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
rangeValue = smuX.source.rangeY
smuX.source.rangeY = rangeValue
rangeValue
X
Y
Details
This attribute contains a value that sets the source-measure unit (SMU) to a fixed range large enough to source
the value. When read, the attribute contains the range the instrument is presently on when in autorange.
Assigning a value to this attribute sets the SMU to a fixed range large enough to source the assigned value. The
instrument will select the best range for sourcing a value of rangeValue.
Reading this attribute returns the positive full-scale value of the source range the SMU is currently using. With
source autoranging enabled, the output level controls the range. Querying the range after the level is set will
return the range the unit chose as appropriate for that source level.
This attribute is primarily intended to eliminate the time required by the automatic range selection performed by a
sourcing instrument. Because selecting a fixed range will prevent autoranging, an overrange condition can occur.
For example, sourcing 3.0 V on the Model 2651A 1 V range will cause an overrange condition.
Example
smua.measure.rangev = 1
2651A-901-01 Rev. A / March 2011
(on page 7-220)
(on page 7-221)
Affected by
SMU reset
Instrument reset
Recall
Set to the maximum expected voltage or current to be sourced
Source-measure unit (SMU) channel (for example, smua.measure.rangev
applies to SMU channel A)
SMU source function (v = voltage, i = current)
Sets SMU Channel A to turn the
output off if the output enable line
goes low (deasserted).
Where saved Default value
Saved setups Voltage: 100e-3 (100 mV)
Current: 100e-9 (100 nA)
Selects the 1 V source range for SMU channel A.
Section 7: Command reference
7-223