User manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7:
TSP command reference
2600BS-901-01 Rev. B / May 2013 7-187
smuX.cal.password
This attribute stores the password required to enable calibration.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (W)
Yes
Not applicable
SMU nonvolatile
memory
"KI0026XX"
Usage
smuX.cal.password = newPassword
X
SMU channel (for example, smua.cal.password applies to SMU channel A)
newPassword
The new password (string)
Details
A new password can only be assigned when calibration has been unlocked.
The calibration password is write-only and cannot be read.
Example
smua.cal.password = "LetMeIn"
Assigns a new calibration password for SMU channel A.
Also see
Adjustment (on page B-18)
smuX.cal.unlock() (on page 7-190)
smuX.cal.polarity
This attribute controls which calibration constants are used for all subsequent measurements.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Instrument reset
SMU reset
SMU cal. lock
Recall setup
Not saved
0 (smuX.CAL_AUTO)
Usage
calPolarity = smuX.cal.polarity
smuX.cal.polarity = calPolarity
calPolarity
The polarity to use for measurements. Set to one of the following values:
0 or smuX.CAL_AUTO: Automatic polarity detection
1 or smuX.CAL_POSITIVE: Measure with positive polarity calibration constants
2
or
smu
X
.CAL_NEGATIVE
: Measure with negative polarity calibration constants
X
SMU channel (for example, smua.cal.polarity applies to SMU channel A)