YOKOGAWA FLEXA FLXA202 Technical Information page 6

(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.
Reboot switch
(Do not use it)
Figure 2 FLXA202 Parts names and descriptions
Switch (Don't use it for service engineers only)
Slide switch
(for HART only)
Nameplate
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.
Slide switch
(for HART only)
Front view with the front panel opened
Front view with all wiring covers removed
HART Communication
TI 12A01A02-60E
6
Fig 01.ai
Jun. 29, 2017-00