Keithley 2600a series - Page 427

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-105
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.cal.lock
X = SMU channel (a or b)
Function Disables commands that change calibration settings.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage smuX.cal.lock()
Remarks • This function will disable the calibration functions that can change the calibration settings. It is an
error to call this function while the calibration state is smuX.CALSTATE_CALIBRATING. The
calibration constants must be written to nonvolatile memory, or a previous calibration set must be
restored prior to locking calibration.
Details See Calibration in Section 20.
Also see smuX.cal.restore, smuX.cal.save, smuX.cal.state
Example Disable calibration functions for SMU A:
smua.cal.lock()
smuX.cal.password
X = SMU channel (a or b)
Attribute Password to enable calibration.
Default “KI0026XX”
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage smuX.cal.password = newpassword
newpassword The new password (string).
Remarks • A new password can only be assigned when calibration has been unlocked.
• The calibration password is write-only and cannot be read.
Details See Calibration in Section 20.
Example Assign a new calibration password for SMU A:
smua.cal.password = "LetMeIn"