HART Communication
6
TI 12A01A02-60E
(3) Physical write-protect
The FLXA202/FLXA21 has two switches for physical write-protection on the back side of the
display. Setting two switches to ON position prevents the settings from being changed via
HART communication.
Write-protect switch
The FLXA202/FLXA21 has a write-protect switch for HART communication.
1
ON
2
ON
Front view with the front panel opened
Reboot switch
(Do not use it)
Slide switch
(for HART only)
Figure 2 FLXA202 Parts names and descriptions
1
ON
2
ON
Front view with all wiring covers removed
Switch (Don’t use it for service engineers only)
Slide switch
(for HART only)
Nameplate
Fig 01.ai
Figure 3 FLXA21 Parts names and descriptions
Turning those slide switches ON disable the setting via HART communication (default: OFF).
NOTE
Don’t push the button switch next to the two slide switches, when these switches are set to ON or
set to OFF.
Jun. 29, 2017-00
