ABB Relion 670 series, Technical Reference Manual

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At least one user must be included in the UserAdministrator group to be
able to write users, created in PCM600, to IED.
4.1.1.1 Authorization handling in the IED
At delivery the default user is the SuperUser. No Log on is required to operate the IED
until a user has been created with the IED User Management..
Once a user is created and downloaded to the IED, that user can perform a Log on,
introducing the password assigned in the tool.
If there is no user created, an attempt to log on will display a message box: “No user
defined!”
If one user leaves the IED without logging off, then after the timeout (set in Main
menu/Settings/General Settings/HMI/Screen/Display Timeout ) elapses, the IED
returns to Guest state, when only reading is possible. The display time out is set to 60
minutes at delivery.
If there are one or more users created with the IED User Management and downloaded
into the IED, then, when a user intentionally attempts a Log on or when the user
attempts to perform an operation that is password protected, the Log on window will
appear.
The cursor is focused on the User identity field, so upon pressing the “E” key, the user
can change the user name, by browsing the list of users, with the “up” and “down”
arrows. After choosing the right user name, the user must press the “E” key again.
When it comes to password, upon pressing the “E” key, the following character will
show up: “$”. The user must scroll for every letter in the password. After all the letters
are introduced (passwords are case sensitive) choose OK and press the “E” key again.
If everything is alright at a voluntary Log on, the local HMI returns to the
Authorization screen. If the Log on is OK, when required to change for example a
password protected setting, the local HMI returns to the actual setting folder. If the Log
on has failed, then the Log on window opens again, until either the user makes it right
or presses “Cancel”.
1MRK505222-UUS C
Section 4
Basic IED functions
77
Technical reference manual