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 parameters within accessible pages can be written to. The user can write to the selected level and all lower levels. (default: 5)
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| 1 | Security Levels |
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Home Page: 1 |
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Operations Page: 1 |
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2 |
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or 3 |
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Setup Page: 4 |
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Profiling Page: 1 |
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2 |
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or 3 |
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Factory Page Menus |
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Custom Menu: 5 |
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Lockout Menu: 0 |
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Diagnostic Menu: 0 |
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Calibration Menu: 5 |
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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).
2If 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.
Watlow | • 65 • | Chapter 9 Features |