Table of Contents
Advertisement
March 2004
Unlocking and Locking
the UTX878
Unlocking the UTX878
2-2
To prevent unauthorized tampering with either the display or the user
program, the UTX878 offers a pair of security codes. Once you have
set the security level, an operator requires one of these codes to
change either the display (Prog Lock) or the display and the user
program (Full Lock).
To unlock the display and/or the user program:
1. Press [ESC], [ENT], [ESC]. A Security Check window, similar to
Figure 2-2 below, opens.
Security Check
ENTER VALUE
9999
[ENT] = save changes
[ESC] = undo changes
[ ] [ ] = move cursor
[ ] [ ] = change value
Figure 2-2: Security Check Window
2. Using the arrow keys, change the code number to the value
desired for your security level.
•
For Prog Lock (granting access only to the display), the number
2719.
is
•
For Full Lock (granting access to the display and user
program), the number is
3. Press [ENT]. The display screen reappears, with the lock removed
or partially unlocked. Security will remain at this level until you
change the level in the user program, as described on the next
page.
7378.
Programming Site Data
Advertisement
Table of Contents
