Blank Passwords; Password Rules - GE MiCOM P40 Agile Technical Manual

P14D
Level Meaning
Read All
2
Write Some
Read All
3
Write All
4.2.1

BLANK PASSWORDS

A blank password is effectively a zero-length password. Through the front panel it is entered by confirming the
password entry without actually entering any password characters. Through a communications port the Courier
and Modbus protocols each have a means of writing a blank password to the IED. A blank password disables the
need for a password at the level that this password is applied.
Blank passwords have a slightly different validation procedure. If a blank password is entered through the front
panel, the following text is displayed, after which the procedure is the same as already described:
Blank passwords cannot be configured if the lower level password is not blank.
Blank passwords affect the fall back level after inactivity timeout or logout.
The 'fallback level' is the password level adopted by the IED after an inactivity timeout, or after the user logs out.
This will be either the level of the highest-level password that is blank, or level 0 if no passwords are blank.
4.2.2

PASSWORD RULES

Default passwords are blank for Level 1 and are AAAA for Levels 2 and 3
●
Passwords may be any length between 0 and 8 characters long
●
P14D-TM-EN-8
Read Operation
All data and settings are readable.
Poll Measurements
All data and settings are readable.
Poll Measurements
BLANK PASSWORD
ENTERED CONFIRM
Write Operation
All items writeable at level 1.
Setting Cells that change visibility (Visible/Invisible).
Setting Values (Primary/Secondary) selector
Commands:
Reset Indication
Reset Demand
Reset Statistics
Reset CB Data / counters
Level 2 Password setting
All items writeable at level 2.
Change all Setting cells
Operations:
Extract and download Setting file.
Extract and download PSL
Extract and download MCL61850 (IEC61850 CONFIG)
Auto-extraction of Disturbance Recorder
Courier/Modbus Accept Event (auto event extraction, e.g. via
A2R)
Commands:
Change Active Group setting
Close / Open CB
Change Comms device address.
Set Date & Time
Switch MCL banks / Switch Conf. Bank in UI (IEC61850 CONFIG)
Enable / Disable Device ports (in SECURITY CONFIG column)
Level 3 password setting
Chapter 18 - Cyber-Security
409