Keithley SourceMeter 2600 Series Reference Manual page 338

12-64 Instrument Control Library
smuX.cal.save
Function Stores the calibration constants in non-volatile memory.
Usage
smuX.cal.save()
• This function will store the current set of calibration constants in non-volatile
Remarks
memory. The previous calibration constants (from the default calibration set) will be
copied to the previous calibration set (
default calibration set.
This function will be disabled until a successful call to
•
made. If any of the calibration constants have been changed, this function will be
disabled unless both the calibration date and the calibration due date have been
assigned new values.
Details See Section 16
Also see smuX.cal.date, smuX.cal.due, smuX.cal.restore,
Stores calibration constants for SMU A in non-volatile memory:
Example
smua.cal.save()
smuX.cal.state
Attribute Calibration state.
Usage
calstate = smuX.cal.state
Remarks When reading this read-only attribute, calstate returns one of the following values:
0 smuX.CALSTATE_LOCKED
1 smuX.CALSTATE_CALIBRATING
2 smuX.CALSTATE_UNLOCKED
Details See Section 16
Also see smuX.cal.due, smuX.cal.restore, smuX.cal.save,
Reads calibration state for SMU A:
Example
calstate = smua.cal.state
print(calstate)
Output:
The above output indicates that calibration is locked.
2600S-901-01 Rev. A / May 2006
Series 2600 System SourceMeters Reference Manual
X = SMU channel (a or b)
(calibration).
X = SMU channel (a or b)
(calibration).
0.000000e+00
Return to
CALSET_PREVIOUS
smuX.makebuffer
Calibration is locked.
The calibration constants or dates have
been changed but not yet saved to
nonvolatile memory.
Calibration is unlocked but none of the
calibration constants or dates have
changed since the last save/restore.
smuX.makebuffer
Section 12 topics
) prior to overwriting the
is
smuX.cal.unlock