Endress+Hauser Proline Prowirl 73 - Switching HART Write Protection On;Off

Operation Proline Prowirl 73
48 Endress+Hauser
5.4.6 Switching HART write protection on/off
A DIP switch on the amplifier board provides the means of activating or deactivating the HART
write protection. If HART write protection is enabled, it is not possible to change parameters via the
HART protocol.
#
Warning!
Risk of electric shock.
Exposed components carry dangerous voltages.
Make sure that the power supply is switched off before you remove the cover of the electronics
compartment.
1. Switch off power supply.
2. Unscrew the cover of the electronics compartment from the transmitter housing.
3. Remove the display module (a) from the retaining rails (b) and refit onto the right retaining rail
with the left side. This secures the display module.
4. Fold up the plastic cover (c).
5. Set the DIP switch to the desired position.
Position A (DIP switch at front) HART write protection disabled
Position B (DIP switch at rear) HART write protection enabled
!
Note!
The current status of the HART write protection is displayed in the WRITE PROTECTION
function ä 138.
6. Installation is the reverse of the removal procedure.
A0001916
Fig. 28: DIP switch for switching HART write protection on and off
a Local display module
b Retaining rails of local display module
c Plastic cover
A Write protection disabled (DIP switch at front)
B Write protection enabled (DIP switch at rear)
Esc
a
b
c
–+E
A
B