Description of the PLC300 Operation
9-2 | PLC300
necessary to have a password of higher level or equal to the level 5.
In addition to the property of the level of access, you can set the ‘auto logoff’, which resets
the password entered to access level prior to the screen that has just left.
When trying to access a screen with level of access higher than zero, the following screen
is shown, waiting to enter the password.
[ACCESS TO SCN: 002]
[ACCESS LEVEL : 5]
[6 DIGIT PASSWORD ]
▓
The password must have six numerals. Arrows <> or <DEL> delete the typed character.
After typing the six numerals, press <ENTER> to access the screen. If you do not have the
level of access, press <ESC> to return to the previous screen.
In case of an invalid password, either by a typo or level of access lower than the required,
the following message appears flashing:
**INVALID PASSWORD**
returning to the password entry screen.
9.1.2 Function Keys: F1...F12
The function keys can be programmed to execute BIT or SCREEN functions. The
programming of each function key is independent for each screen, that is, the same
function key can have different actions for each screen. When the function key has a certain
assignment on the current screen, the LED corresponding to the key goes on.
The BIT actions are:
ON: turns on a certain Boolean variable (bit marker).
OFF: turns off a certain Boolean variable (bit marker).
Toggle: inverts the status of a certain Boolean variable (bit marker).
Momentary ON: turns on a certain Boolean variable (bit marker) only while the key is
pressed; when you release the key, the marker returns to zero.
In the SCREEN function, when the key is pressed, the programmed screen appears.
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