User Manual

Room automation
Desigo RXB
20
CM110664en_07 301 | 353
The range consists of controllers, operator units and predefined applications.
The applications are configured and downloaded with the ETS Professional
commissioning and service tool.
See
Working with ETS (CM1Y9779).
The Desigo RXB room automation system is based on KNX/EIB technology. To
integrate Desigo RXB into the automation level, the RXB data is mapped to
BACnet.
A group address / binding is a connection of network variables of the same type
between different nodes. The group addresses / bindings are generated using
ETS (EIB tool software) when designing the KNX/EIB network. The bound
network variables communicate when changing the value and using a
heartbeat. Transmission and reception times are also monitored, allowing you
to react to communications errors.
Discipline I/Os are function blocks in the PX KNX system controller, which
gather data from the RXB controller and make it available on the BACnet
network. Discipline I/Os are available for HVAC functions.
The Konnex Association is an association founded by the manufacturers of
KNX/EIB products, to define interoperability guidelines for KNX/EIB systems.
The association is responsible for checking compliance and for the certification
of KNX/EIB products.
A KNX/EIB node is a device which is connected to the KNX/EIB bus and
communicates with other KNX/EIB nodes.
Network variables (NV) allow the exchange of data between different KNX/EIB
nodes. Network variables may be input or output variables.
The discipline I/Os representing the RXB controllers in a room are combined in
the PX KNX system controller into a room-based group. The result is a room
view.
Cross-room groupings contain all the control variables common to a given user
grouping (e.g., north facade, tenant A, west zone, etc.) and distribute these
control variables to the associated room or group members.
The PX KNX system controller comprises a PXC001(-E).D controller and loaded
PX KNX firmware. Communication takes place via BACnet/LonTalk (PXC001.D)
or BACnet/IP (PXC001-E.D). With the system controller, you can integrate the
Synco RMU710, RMU720, RMU730 and RMH760 controllers into Desigo.
The PX KNX tool is used to configure the PX KNX system controller on the KNX
side.
PXC50/100/200...D TX-I/O PX KNX
System controller
Desigo CC
TX-I/O
RXB
RXB
PXM20
BACnet/IP
Synco 700
RXB topology
Group address / Binding
Discipline I/Os
Konnex Association
KNX/EIB nodes
Network variables (NV)
Room-based groups
Cross-room groupings
PX KNX system
controller
PX KNX Tool