Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 67)

Wa t l o w E Z - Z O N E ® P M I n t e g r a t e d C o n t r o l l e r • 6 5 • C h a p t e r 9 F e a t u r e s
Using Lockout to Secure Settings
If unintentional changes to parameter settings might
raise safety concerns or lead to downtime, your can
use the lockout feature to make them more secure.
Each of the menus in the Factory Page and each
of the pages, except the Factory Page, has a security
level assigned to it. You can change the read and
write access to these menus and pages by using the
parameters in the Lockout Menu (Factory Page).
Lockout Menu
There are four parameters in the Lockout Menu (Fac-
tory Page):
Lock Operations Page [LoC;o] sets the security level
for the Operations Page. (default: 2)
Lock Profiling Page [LoC;P] sets the security level
for the Profiling Page. (default: 3)
Read Lockout Security [rLoC] determines which
pages can be accessed. The user can access the
selected level and all lower levels. (default: 5)
Set Lockout Security [SLoC] determines which pa-
rameters within accessible pages can be written
to. The user can write to the selected level and
all lower levels. (default: 5)
Home Page: 1
Operations Page: 1
2
or 3
Setup Page: 4
Profiling Page: 1
2
or 3
Factory Page Menus
Custom Menu: 5
Lockout Menu: 0
Diagnostic Menu: 0
Calibration Menu: 5
5 4 3 2 1 0
default
default
Security Levels
Bars indicate page and menu access by security level.
The following examples show how the Lockout
Menu parameters may be used in applications:
1. You can lock out access to the Operations Page
but allow an operator access to the Profile Menu,
by changing the default Profile Page and Opera-
tions Page security levels. Change Lock Opera-
tions Page
[LoC;o] to 3 and Lock Profiling Page
[LoC;P] to 2. If Set Lockout Security [SLoC] is
set to 2 or higher and the Read Lockout Security
[rLoC] is set to 2, the Profiling Page and Home
Pages can be accessed, and all writable parame-
ters can be written to. Pages with security levels
greater than 2 will be locked out (unaccessible).
2 If Set Lockout Security [SLoC] is set to 0 and
Read Lockout Security [rLoC] is set to 5, all
pages will be accessible, however, changes will
not be allowed on any pages or menus, with one
exception: Set Lockout Security
[SLoC] can be
changed to a higher level.
3. The operator wants to read all the menus and not
allow any parameters to be changed.
In the Factory Page, Lockout Menu, set Read
Lockout Security [rLoC] to 5 and Set Lockout
Security [SLoC] to 0.
4. The operator wants to read and write to the
Home Page and Profiling Page, and lock all other
pages and menus.
In the Factory Page, Lockout Menu, set Read
Lockout Security
[rLoC] to 2 and Set Lockout
Security [SLoC] to 2.
In the Factory Page, Lockout Menu, set Lock
Operations Page
[LoC;O] to 3 and Lock Profiling
Page [LoC;P] to 2.
5. The operator wants to read the Operations
Page, Setup Page, Profiling Page, Diagnostics
Menu, Lock Menu, Calibration Menu and Cus-
tom Menus. The operator also wants to read and
write to the Home Page.
In the Factory Page, Lockout Menu, set Read
Lockout Security
[rLoC] to 1 and Set Lockout
Security [SLoC] to 5.
In the Factory Page, Lockout Menu, set Lock
Operations Page
[LoC;O] to 2 and Lock Profiling
Page [LoC;P] to 3.
Note: Avoid continuous writes within loops. Excessive writes to
EEPROM will cause premature EEPROM failure. The EEPROM is
rated for 1,000,000 writes.