Endress+Hauser Proline Promag L 400 - Write Protection Via Write Protection; Switch

Commissioning Proline Promag L 400 PROFIBUS DP
92 Endress+Hauser
The device automatically locks the write-protected parameters again if a key is not pressed
for 10 minutes in the navigation and editing view. The device locks the write-protected
parameters automatically after 60 s if the user skips back to the operational display mode
from the navigation and editing view.
• If write access is activated via access code, it can be also be deactivated only via the
access code (→  59).
• The user role with which the user is currently logged on via the local display is
indicated by the Access status display parameter. Navigation path: "Operation"
menu → Access status display.
Parameters which can always be modified via the local display
Certain parameters that do not affect the measurement are excepted from write protection
via the local display. Despite the defined access code, these parameters can always be
modified even if the other parameters are locked.
Defining the access code via the Web browser
1. Navigate to the Enter access code parameter.
2. Define a max. 4-digit numeric code as an access code.
3. Enter the access code again to confirm the code.
 The Web browser switches to the login page.
If no action is performed for 10 minutes, the Web browser automatically returns to
the login page.
The user role with which the user is currently logged on via the Web browser is
indicated by the Access status tooling parameter. Navigation path: Operation →
Access status tooling
10.9.2 Write protection via write protection switch
Unlike write protection via user-specific access code, this allows write access to the entire
operating menu - other than the "Contrast display" parameter - to be locked.
The parameter values are now read only and cannot be edited any more (exception
"Contrast display" parameter):
Via local display
1
2
3
4
1
2
3
4
1
2
ON OFF
Not used
Write protection
SW
64
32
16
8
4
2
1
PROFIBUS
address
A0023060
1. Loosen the 4 fixing screws on the housing cover and open the housing cover.
2. Setting the write protection switch (WP) on the main electronics module to the ON
position enables the hardware write protection. Setting the write protection switch
(WP) on the main electronics module to the OFF position (factory setting) disables
the hardware write protection.
 If hardware write protection is enabled, the Hardware locked option is displayed
in the Locking status parameter (→  94). In addition, on the local display