It is also possible to combine 2 or 3 relays with logic interlock for 4-pipe / 3-speed fan coil control or combine groups of relays (up to 6) for special function using logic interlock.
The version BO12F01KNX-SD includes a microSD card reader where you can save the programming of the device, giving it the possibility to be restored on an identical device in order to avoid programming in field or to allow a fast repair in case of failure.