LG PQNFB16A1 - Manual (Page 8)

External wiring diagram
8 Lonworks Gateway
LON protocol
BMS system
BNU-LW
RS485
RI485 Central controller address(0.0) (0.1) . . . . . . . . . . . . (0.F)
Central controller address(1.0)
Central controller
address(2.0)
Central controller
address(2.4)
(2.1) (2.2) (2.3)
(2.5) (2.6) (2.7)
(1.1) . . . . . . . . . . . . (1.F)
Air conditioner
RI485
<Maximum number of connected indoor unit: 64 units>
• When the address of the indoor unit of the air conditioner is duplicated with that of the ventilation
unit, it will not operate normally.
• Maximum of 64 units of the indoor unit (Air conditioner+Ventilation) can be connected to the BNU-
LW.
• It is recommended to connect 16 units of PI485 and maximum of d32 PI485 units to the BNU-LW.
• Ventilation products cannot be interfaced with the simple central controller.
External wiring diagram
How to set the address for the central controller of
the indoor unit connected to BNU-LW (Lonworks Gateway)