
6.OPERATING THE PMC SCREEN B-63983EN/02
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6.2.3 Password Function
The password function provides protection against unauthorized
attempts to display or edit the content of the ladder program. When
the password function is in use, the ladder program cannot be
displayed or edited without entering the "password" that is preset with
an offline programmer such as FANUC LADDER-III.
(1) Types of password
There are two types of password.
· Display permission password
· Edit permission password
(2) Specifiable characters
For a character string to be specified as a password, it needs to
meet the following conditions:
· 16 characters or less in length
· Alphabetic letters (uppercase only) and/or numbers
(3) Screens to be protected
The following screens are protected through the use of the
password:
· Ladder display screen
· Ladder editing screen
· Program list display screen
· Program list editing screen
(4) Display of the protection status
The protection status of the program can be checked using the
program list display screen or program list editing screen. For
details, see (2) in Section 8.1.
(5) Cancellation of the password
When you attempt to switch to a password-protected screen, you
are asked to enter the password. In this process, you can cancel
the password by entering the "password character string" and
then clicking the input key.
NOTE
1 Once you cancel the password, you will not be
asked to enter the password until you either shut
down the system and turn on its power again or
replace the ladder program using the I/O or other
function.
2 The sequence program that lets you turn on the
power by pressing "X" and "O" simultaneously can
be cleared, regardless of whether the password is
set or not.