System Architecture - Honeywell TR80UWD Installation And Operating Manual

1.7 System Architecture

TR 80 wall module can act as Slave or Master in the Modbus communication net-
work. The various example of system architecture are as shown below:
System Architecture 1( TR80 and DALI as Modbus Slave to Room controller )
In this Architecture the controller act as Modbus Master for TR80 (Modbus salve)
and DALI64(Modbus salve). User light commands are periodically polled from
TR80 by controller and Transmitted to DALI64 for execution. The controller also
regularly checks the light status/level from DALI64 periodically and updates the
TR80 registers with current status. The Shutter/Blind User commands(level and/or
Angle) is polled from TR80 by controller and executed via digital outputs.
14 TR80 - Installation and Operation Guide