The LCI-90i and the LCI-80 can both be utilized in a master (or local) and remote mode. The operator can put any display into a remote mode through the front panel buttons and onboard menu. As the operator changes settings, alarms or other variables on the local, the remote unit will change accordingly. The remote can be connected to the local display through RS-485 or Ethernet. If the local unit ever fails, then a remote display can easily be reconfigured to replace the failed local unit.