GE L90 Instruction Manual page 234

PRODUCT SETUP
There are two user security access levels, setting and command, for which you can set a password for each. Use of a
password for each level controls whether users can enter commands or change settings. Another option is to specify
setting and/or command access for individual user accounts.
• Setting — Allows the user to make any changes to any of the setting values:
– Changing any setting
– Test mode operation
• Command — Restricts the user from making any settings changes, but allows the user to perform the following
operations:
– Operating the breakers via front panel keypad
– Changing the state of virtual inputs
– Clearing the event records
– Clearing the oscillography records
– Clearing fault reports
– Changing the date and time
– Clearing the breaker arcing current
– Clearing energy records
– Clearing the data logger
– Clearing the user-programmable pushbutton states
When entering a settings or command password via EnerVista or any serial interface, the user must enter the
corresponding connection password. If the connection is to the back of the L90, the remote password must be used. If the
connection is to the RS232 port of the front panel, the local password must be used.
5
The local setting and command sessions are initiated by the user through the front panel display and are disabled either by
the user or by timeout (via the setting and command level access timeout settings). The remote setting and command
sessions are initiated by the user through the EnerVista software and are disabled either by the user or by timeout.
The state of the session (local or remote, setting or command) determines the state of the following FlexLogic operands:
•
ACCESS LOC SETG OFF
•
ACCESS LOC SETG ON
•
ACCESS LOC CMND OFF
•
ACCESS LOC CMND ON
•
ACCESS REM SETG OFF
•
ACCESS REM SETG ON
•
ACCESS REM CMND OFF
•
ACCESS REM CMND ON
A command or setting write operation is required to update the state of the remote and local security operands
listed.
When a setting password or command password is set or updated, user access with a graphical front panel is
removed. Simply log in again on the graphical front panel.
When the setting password is set or updated, the graphical front panel Access Level displays as Command. This is
because the graphical front panel is a Modbus client and it does not have automatic access to the password
change.
PASSWORD ACCESS EVENTS
5-10
— Asserted when local setting access is disabled
— Asserted when local setting access is enabled
— Asserted when local command access is disabled
— Asserted when local command access is enabled
— Asserted when remote setting access is disabled
— Asserted when remote setting access is enabled
— Asserted when remote command access is disabled
— Asserted when remote command access is enabled
— This setting allows recording of password access events in the event recorder.
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS