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2600S-901-01 Rev. C / January 2008
Return to
12-69
Series 2600 System SourceMeter® Instruments Reference Manual
Section 12: Instrument Control Library
smuX.reset
X = SMU channel (a or b)
Function
Turns off the output and resets the SMU to the default settings.
Usage
smuX.reset()
Remarks
Returns the SMU to the default settings listed in
Details
See “
” in
.
Also see
smuX.sense
X = SMU channel (a or b)
Attribute
Remote/local sense mode.
Usage
sense
= smuX.
sense
-- Reads sense mode.
smuX.
sense = sense
-- Writes sense mode.
Set
sense
to one of the following values:
0
or
smuX.SENSE_LOCAL
Selects local sense (2-wire).
1
or
smuX.SENSE_REMOTE
Selects remote sense (4-wire).
3
or
smuX.SENSE_CALA
Selects calibration sense mode.
Remarks
• Source-measure operations are performed using either 2-wire local sense connections or
4-wire remote sense connections. Writing to this attribute selects the sense mode.
•
The
smuX.SENSE_CALA
mode is only used for calibration and may only be selected
when calibration is enabled.
• The sense mode can be changed between local and remote while the output is on.
• The calibration sense mode cannot be selected while the output is on.
•
The
reset
function selects the local sense mode.
Details
See “
.
Example
Selects remote sensing for SMU A:
smua.sense = smua.SENSE_REMOTE
smuX.source.autorangeY
X = SMU channel (a or b)
Y = SMU measure function (v or i)
where v = voltage, i = current
Attribute
Source auto range control (on/off).
Usage
sautorange = smuX.source.autorangeY
-- Reads source auto range.
smuX.source.autorangeY = sautorange
-- Writes source auto range.
Set
autorange
to one of the following values:
0
or
smuX.AUTORANGE_OFF
Disables source auto range.
1
or
smuX.AUTORANGE_ON
Enables source auto range.
Remarks
• This attribute indicates the source auto range state. Its value will be
smuX.AUTORANGE_OFF
when the SMU source circuit is on a fixed range and
smuX.AUTORANGE_ON
when it is in auto range mode.
• Setting this attribute to
smuX.AUTORANGE_OFF
puts the SMU on a fixed source range.
The fixed range used will be the range the SMU source circuit was currently using.
• Setting this attribute to
smuX.AUTORANGE_ON
puts the SMU source circuit into auto
range mode. If the source output is on, the SMU will immediately change range to the
range most appropriate for the value being sourced if that range is different from the SMU
range.
• Auto range will disable if the source level is edited from the front panel.
Details
See “
” in
Also see
,
Example
Enables volts source auto range for SMU A:
smua.source.autorangev = smua.AUTORANGE_ON