Emerson Vilter VilTech, Operation And Service Manual

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Passwords
The Viltech system manager will assign user numbers, passwords, screen read and write access levels and screen
access requirements for all users. A user is defined as an individual or group of individuals who will be using the
system. Each user of the Viltech can be assigned a numeric password to define their operating privileges. The
system manager’s password will initially be assigned by Vilter Manufacturing upon system configuration and may
be changed by the system manager if desired. All other users will be assigned a six digit password, which has an
associated read and write access level. A user must enter the numeric password to log onto the system to obtain
access beyond the basic system default access levels. Once a user is finished performing the task required, he may
then logoff manually. If the logoff option is not selected, logoff will occur automatically after a 10 minute period of
no keypad activity.
Adding/Deleting Users
The system manager is able to add or delete users from the Viltech by accessing the ADD/DELETE USER
screen. A user is added by defining a password, read access level and write access level. The higher the
access level the more privileges the individual will have on the system. Access levels will range from 0 to 9,
with the system manager being assigned 9 for full access. The read and write features will each have their
own access level with the left number being the read access level and the right number being the write access
level. The read access level defines the access level at which a user may view a screen. The write access level
defines the access level at which a user may change data on a screen. When a user is deleted this information
is removed from the list. The maximum number of users is 10. When the system is set to Factory
Configuration, User 01 is given a password of 999999 with full access. This should be changed after the
password system is set-up.
Screen Access Levels
The system manager can assign read and write access levels to groups of screens on the Viltech by
choosing the
SCREEN ACCESS LEVEL menu selection. The specific screens available for protection will
vary depending on the system configuration. Some examples of screens which might be considered for
limited access are control, setpoint, calibration and initialization screens. Access for screens such as set date
and time and set log rate may be less restricted.
Initialization
The INITIALIZATION menu selection under the Set-up group allows the user to reset the system or restore
factory setpoints.
Power Fail Reset
Choosing Power Fail Reset causes the software to restart using current setpoints as if a power failure oc-
curred.