Write Protection Via Write Protection; Switch - Endress+Hauser Proline Prosonic Flow E 100 HART Operating Instructions Manual

Commissioning
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10.7.1 Write protection via write protection switch
The write protection switch makes it possible to block write access to the entire operating
menu with the exception of the following parameters:
• External pressure
• External temperature
• Reference density
• All parameters for configuring the totalizer
The parameter values are now read only and cannot be edited any more:
• Via service interface (CDI)
• Via HART protocol
1. Depending on the housing version, loosen the securing clamp or fixing screw of the
housing cover.
2. Depending on the housing version, unscrew or open the housing cover and
disconnect the local display from the main electronics module where necessary
→  101.
3.
ON
Disconnect the T-DAT from the main electronics module.
4. Setting the write protection switch on the main electronics module to the ON position
enables the hardware write protection. Setting the write protection switch on the
main electronics module to the OFF position (factory setting) disables the hardware
write protection.
 If hardware write protection is enabled: the Locking status parameter displays
the Hardware locked option ; if disabled, the Locking status parameter does not
display any option .
5. Reverse the removal procedure to reassemble the transmitter.
OFF
2 = Not used
1 = Write protection
Proline Prosonic Flow E 100 HART
Endress+Hauser
A0022571