Tektronix Keithley 2651A Reference Manual page 315

Section 6: Instrument programming
Setting the password from a command or web interface
The attribute localnode.passwordmode enables passwords and sets the mode. The password
mode identifies which interface to password protect.
Set this attribute to one of the values below to enable password checking:
•
localnode.PASSWORD_NONE or 0: Disable passwords everywhere
•
localnode.PASSWORD_WEB or 1: Use passwords on the web interface only
•
localnode.PASSWORD_LAN or 2: Use passwords on the web interface and all LAN interfaces
•
localnode.PASSWORD_ALL or 3: Use passwords on the web interface and all remote command
interfaces
When a password is set for the web interface, you cannot make changes using the web interface
options Reading Buffers, Flash Upgrade, or TSB Embedded.
The password lock feature on Model 2651A is similar to the lock feature on your computer.
You must assign a password to use this feature. Passwords can be up to 255 characters.
To set the password using the web interface:
1. From the web interface, click Set Password.
The LXI - Keithley Instruments - 2651A - Administration page is displayed.
2. In Current Password, type the existing password. The default is admin.
3. In New Password, type the new password.
4. Retype the new password in Confirm New Password.
5. Click Submit.
The LXI Welcome page is displayed.
To enable the password from a command interface:
To lock the instrument when you are away from the testing area, send the following command:
password
The remote interface is locked. The Model 2651A does not respond to commands issued from the
command interface until you unlock the interface. This reserves the instrument and protects the test
script running on the instrument.
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Model 2651A High Power System SourceMeter® Instrument Reference Manual
2651A-901-01 Rev. C October 2021