User Manual

Overview
General
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3 Overview
There is a different approach in room automation with regard to flexibility, sizing, use, and reuse versus on
primary plants, for example, air handling.
Functions are required here to centrally switch all rooms with a specific room state through the entire floor
or switch lighting in rooms at a specified time. The same applies to shading systems that deploy the blinds
to a safe position during high winds based on a weather station. Building users are increasingly requiring
flexible use of rooms. For example, the rooms are newly rented out, or rooms are increased in size using
partitions and designed to the current use.
Building automation and control expects the building automation and control system to do this, or for the
room automation to automatically adapt.
On the one hand, central functions can control the room operating mode as well as centralized control of
lighting and blinds over multiple room automation stations. Protection, service, or emergency functions can
also be implemented over various devices.
On the other hand, flexible room management can be implemented with Desigo room automation and PXC3
or DXR2 room automation stations.
Repurposing can be quite easy using the separation between room and room segment. Coordination takes
place in the room between HVAC, lighting, and blinds, set points are calculated, etc., and then sent to the
assigned room segments. The physical data points are located in the segment to control aggregates and
components.
The entire Desigo system prefers the use of BACnet/IP to avoid expensive gateway solutions. This requires
careful planning, sizing, and implementation of BACnet and IP networks.
Production
Distribution
T
Central
Occupancy Control
1...3
Scheduler
Central
Blind Control
Scheduler
Central
Lighting Control
1...3
Scheduler
Central
Heating Control
Central
Setpoint Control