Siemens Desigo RXB Technical Manual page 8

Integration into the DESIGO building
automation & control system
Communication
Room controllers and
accessories from Siemens or
third-party manufacturers
Identical range of functions in the
applications
Identical room units
2 / 4
Solutions meeting a variety of needs
The DESIGO RX... room automation systems take care of comfort in
individual rooms or self-contained zones. In this process, the
temperature and quality of the indoor air can be adjusted by use of
an operator unit (the "room unit"). The system is rounded off by
integrated room units for the operation of HVAC, lighting and blinds
where required.
In addition to the room controllers, extension modules and room
units, technically sophisticated application libraries are available,
covering the large majority of common HVAC and electrical
applications.
L W bus
ON ORKS
L W
ON ORKS
RXC
standard
devices
Principal features
The four ranges, RXC, RXB, RXL, and RXA are tailored to the various bus systems
used in buildings:
RXC: LON bus communication
RXB: KNX / EIB bus communication
RXL: Proprietary communication
RXA: Stand-alone (non-communicating)
RXC: RXC offers the widest selection of HVAC applications, and integrated
applications incorporating lighting and blinds. The RXC controllers are
therefore suitable for more sophisticated HVAC applications where control of
lighting and blinds form part of the requirements.
An important benefit is the scope for combined operation of HVAC, lighting
and blinds in a single room unit.
RXB: RXB offers HVAC room control based on KNX / EIB technology.
In addition to the HVAC functions, sophisticated electrical functions can also
be implemented in conjunction with commercially available KNX / EIB
equipment.
RXB is thus primarily suitable for systems where, in addition to the HVAC
controls, there is an emphasis on electrical functions.
RXL:
RXL offers HVAC room control based on proprietary communication.
RXL is primarily suitable for systems where the emphasis is on a cost-
effective HVAC solution for DESIGO without additional functions.
RXA: RXA is the ideal solution for fan-coil systems where no communications
are required.
DESIGO
KNX / EIB
RXB
standard
devices
RAD, CLC, FNC, VAV, FPB
QAX...
Proprietary
communication
RXL RXA