Keithley SourceMeter 2600 Series Reference Manual page 363

Series 2600 System SourceMeters Reference Manual
• Use the
Remarks
source. Use
The SMU will always choose (auto range) the source range for the limit setting.
• This attribute should be set in the test sequence before the turning the source on.
• Reading this attribute indicates the presently set compliance value. Use
smuX.source.compliance
Details See Section 4
Also see smuX.source.compliance, smuX.source.func,
Sets V-compliance to 30V for SMU A:
Example
smua.source.limitv = 30
smuX.source.lowrangeY
Attribute Lowest source range that will be used during autoranging.
Usage
rangeval = smuX.source.lowrangeY
smuX.source.lowrangeY = rangeval
rangeval
• This attribute is used with source autoranging to put a lower bound on the range
Remarks
used. Lower ranges generally require greater settling times. By setting a low range
value, sourcing small values might be able to be made with less settling time.
• If the instrument is set to auto range and it is on a range lower than the one specified
by
rangeval
Details See "Range" in
Also see smuX.source.autorangeY,
Example Sets volts lowrange for Model 2601/2602 SMU A to 1V. This prevents the source from
using the 100mV range when sourcing voltage:
smua.source.lowrangev = 1
smuX.source.limiti
smuX.source.limitv
to read the state of source compliance.
(basic operation).
X = SMU channel (a or b)
Y = SMU measure function (v or i) where v = voltage, i = current
Set to the lowest voltage or current to be sourced.
, the source range will be changed to the range specified by
Section 6.
smuX.source.rangeY
Return to
Instrument Control Library 12-89
attribute to limit the current output of the voltage
to limit the voltage output of the current source.
smuX.source.output
-- Reads low range.
-- Writes low range.
Section 12 topics 2600S-901-01 Rev. A / May 2006
.
rangeval