There are four different levels of user and passwords: 1xxx, 2xxx, 3xxx, and 4xxx. The xxx in each password
is an independent number from 000 to 999 and can be changed periodically by its authorized user.

The 1xxx level password is normally allocated to the supervisor. The supervisor assigns the other level passwords to
the different shift in-charges. The supervisor can change these passwords; even he/she does not know the full password.

The following table explains the password access levels for the different setups.