Switch - Endress+Hauser Proline Prosonic Flow I 400 Operating Instructions Manual

Commissioning
116
10.7.2 Write protection via write protection switch
Unlike parameter write protection via a user-specific access code, this allows the user to
lock write access to the entire operating menu - apart from the "Contrast display"
parameter.
The parameter values are now read only and cannot be edited any more (exception
"Contrast display" parameter):
• Via local display
• Via MODBUS RS485 protocol
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 the hardware write protection is enabled: In Locking status parameter, the
Hardware locked option is displayed. In addition, the  symbol appears on the
local display in front of the parameters in the header of the operational display
and in the navigation view.
If hardware write protection is disabled: No option is displayed in the Locking
status parameter . In the local display, the  symbol disappears from in front of
the parameters in the header of the operational display and in the navigation
view.
3.
WARNING
L
Excessive tightening torque applied to the fixing screws!
Risk of damaging the plastic transmitter.
‣
Tighten the fixing screws as per the tightening torque →  39.
Reassemble the transmitter in the reverse order.
Proline Prosonic Flow I 400 Modbus RS485
X X X X X X X X X
20.50
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Endress+Hauser
A0029425