Emerson 20/20 Manuel D’Utilisation
22 – 3
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.8.5153
either select the username from the operators win-
dow or enter the username manually by touching
the entry box and entering the name via the pop-up
keyboard.
dow or enter the username manually by touching
the entry box and entering the name via the pop-up
keyboard.
Operator Password:
• This entry box is for the operator’s password. The
• This entry box is for the operator’s password. The
password can be entered by touching the password
entry box and entering the password via the pop-up
keyboard.
entry box and entering the password via the pop-up
keyboard.
Verify Password:
• This entry box is to verify the operator’s password.
• This entry box is to verify the operator’s password.
Verifying the password can be entered by touching
the “Verify Password” entry box and entering the
password via the pop-up keyboard.
the “Verify Password” entry box and entering the
password via the pop-up keyboard.
Security Level:
• Select a security level for the account being added or
• Select a security level for the account being added or
modifi ed. Only levels that are equal to or less than the
operator’s own security level will be shown.
Add / Update:
• Pressing this button will initiate the creation or modi-
• Pressing this button will initiate the creation or modi-
fi cation of the specifi ed account.
Delete:
• Pressing this button will delete the specifi ed account.
• Pressing this button will delete the specifi ed account.
Screen Security Levels
The following table lists all screen and their base secu-
rity levels. The majority of the screens have more than
one security level. The base security level gives the user
access to the setpoints that can change to performance
of the compressor. The secondary security level is typi-
cally level 3 and is reserved for those setpoints that re-
quire great care and knowledge of the system in order
to change safely.
rity levels. The majority of the screens have more than
one security level. The base security level gives the user
access to the setpoints that can change to performance
of the compressor. The secondary security level is typi-
cally level 3 and is reserved for those setpoints that re-
quire great care and knowledge of the system in order
to change safely.
Table 22-1. Security Access Levels
Security Access Levels
Page
User Level
*Note
Event List
Level 0
-
Input/Output States
Level 0
-
Trend Chart
Level 0
-
Help
Level 0
-
Alarms & Trips
Level 1*
Level 3 required for constraints
Compressor Scheduling
Level 1
-
Compressor Sequencing
Level 1
-
Condenser Control
Level 1*
Level 3 required for constraints
Compressor Control
Level 1*
Level 3 required for constraints
Maintenance
Level 1
-
Data Backup
Level 1*
Level 3 required to upload data
Instrument Calibration
Level 2
-
Service Option
Level 2
-
Confi guration
Level 2*
Level 3 required for pages 3 - 6
Slide Calibration
Level 2
-
Timers
Level 2*
Level 3 required for constraints
Section 22 • User Access