User Manual

Room automation
Desigo RXB
20
300 | 353 CM110664en_07
● Room operating mode (occupancy and use in room)
● HVAC control via various setpoint requirements depending on the room
operating mode
● HVAC setpoints via a weather-dependent adjustment
● Lighting control
● Shading control (blinds)
Grouping can be used to coordinate demand, operating, and forced signals, that
is:
● Request signals for hot water distribution (heating circuit)
● Request signals for chilled water distribution (cooling circuit)
● Record demand, operating, and forced signals for the primary air handling
unit
Various sources are available for forming these central superposed functions:
● External system or third-party device
● System user via BACnet client
● Building user via BACnet client or local operator unit
● Scheduler or reaction program
● Superposed office based on grouping function
They are distributing after evaluating signals and commands via a Grouping
function.
One group master exists for each of the various categories which then forwards
the resulting information to all assigned group member (rooms). A group master
can for its part be a group member of a superposed group master.
20.1.5 Desigo room automation and the management level
See chapter
Desigo room automation integration .
20.1.6 Desigo room automation and the automation level
Alarming is triggered directly on the PXC3.E.. and DXR2.. room automation
stations. A primary automation station (typically PXC00.E-D) is only used for
calendars, schedulers and time setting. This simplifies engineering and reduces
the number of required system components.
20.2 Desigo RXB
The Desigo RXB room automation system controls and monitors comfort
conditions in individual rooms. It supplies predefined solutions for HVAC.
See
RXB Room automation system - system overview (CM110380).