Keithley 2601 Reference Manual page 331

Series 2600 System SourceMeter® Instruments Reference Manual
smuX.source.compliance
Attribute Source compliance state.
Usage
compliance = smuX.source.compliance
Remarks • Use this attribute to read the state of source compliance. true indicates that the limit
function is in control of the source (source in compliance). false indicates that the source
function is in control of the output (source not in compliance).
• This is a read-only attribute. Writing to this attribute will generate an error.
• Reading this attribute also updates the status model and the front panel with generated
compliance information.
Details See Section 4
Also see smuX.source.limitY
Example Reads the source compliance state for SMU A:
compliance = smua.source.compliance
print(compliance)
Output: true
The above output indicates that the voltage limit has been reached (if configured as a
current source), or that the current limit has been reached (if configured as a voltage
source).
smuX.source.delay
Attribute Source delay.
Usage
smuX.source.delay = Y
Y = smuX.source.delay
Set Y to one of the following values:
or
0 smuX.DELAY_OFF
or
-1 smuX.DELAY_AUTO
User_value
Remarks • This attribute allows for additional source settling time after an output step.
• The default is 0, no delays.
• Setting this attribute to DELAY_AUTO will cause a range dependent delay to be inserted
when ever the source is changed.
• Y can be set to a specific user defined value that will set the delay that is used regardless
of range.
Example Selects the delay to auto SMU A:
smua.source.delay = smua.DELAY_AUTO
smuX.source.func
Attribute Source function.
Usage
iv = smuX.source.func
smuX.source.func = iv
Set iv to one of the following values:
or
0 smuX.OUTPUT_DCAMPS
or
1 smuX.OUTPUT_DCVOLTS
Remarks • Reading this attribute gives the output function of the source. Setting this attribute
configures the SMU as either a voltage source or a current source.
• The reset function selects the voltage function.
Details See Section 4
Also see smuX.source.output,
Example Selects the source amps function for SMU A:
smua.source.func = smua.OUTPUT_DCAMPS
2600S-901-01 Rev. C / January 2008
X = SMU channel (a or b)
"Basic operation" and Appendix D
X = SMU channel (a or b)
-- Writes source delay.
--Read source delay.
No delay.
Auto delay.
Set user delay value.
X = SMU channel (a or b)
-- Reads source function.
-- Writes source function.
Selects current source function.
Selects voltage source function.
"basic operation".
smuX.source.levelY
Return to Section Topics
"Status model".
Section 12: Instrument Control Library
12-71