Honeywell TR80UWD Installation And Operating Manual page 24

System Architecture 4 (TR80 Modbus Slave to Room controller and conven-
tional lighting on controller inputs/outputs.)
In this Architecture the controller act as Modbus Master for TR80(Modbus salve)
and light and switches are connected on conventional digital and analogue
Inputs/outputs of the controller. User light commands are polled from TR80 by
controller and executed through digital and analogue outputs of the controller. The
Shutter/Blind User commands(level and/or Angle) are polled from TR80 by con-
troller and executed via digital outputs.
Note: Max recommended TR80 per room controller : 2 Nos
Max recommended TR80 per plant controller: 10-12 Nos
We may expend this limit going forward based on future testing
TR80 - Installation and Operation Guide 17