User Manual

Room automation
Desigo RXB
20
CM110664en_07 305 | 351
● Mapping RXB data to BACnet objects
● Implementing higher-level functions (grouping, time schedules, etc.)
On the BACnet side of the PX KNX system controller, the RXB controllers can be operated and monitored
from a client. Data can also be exchanged with the primary plant.
20.2.4 RXB applications
The existing Desigo RXB applications cannot be modified for a specific project by the user. These
applications are preprogrammed by groups in the controller and are selected and parameterized using the
ETS Professional commissioning and service tool.
Applications of the same type are grouped into application groups. The technical manual contains the
complete range of RXB applications.
See
RXB (KNX) Technical manual (CM110389).
RXB application library
The RXB application library contains application groups, each of which contains applications of the same
type. The RXB application library has a version number which is defined in the RXB Valid Version Set. This
Valid Version Set also defines the version of each individual RXB application.
Application groups
Similar application types are grouped into application groups. These differ from each other in terms of how
the functions are implemented. Thus chilled ceiling with radiator (CLC02) and chilled ceiling and electric
radiator (CLC03) are two different applications within the CLC group. The first of these two applications
uses water for heating, while the second uses electrical energy. The difference between applications in the
other groups follows a similar pattern.
The following application groups are available for RXB:
● CLC Chilled ceiling applications (not for Synco)
● FNC Fancoil applications
● VAV Variable air volume applications (not for Synco)
Individual applications
The individual application is designed for typical HVAC systems as commonly used in practice in individual
rooms.
Configuring applications
Each application has a defined number of configuration parameters with which the application can be
programmed for a specific project. These parameters consist both of general values (e.g., temperature
setpoints, etc.) and of specific values for the application concerned (e.g., changeover configuration, electric
reheater, etc.).
20.2.5 Mapping RXB in the PX KNX system controller
The RXB system is mapped to the PX KNX system controller with objects. These objects are called
discipline I/Os and are components of the block library.
See
PX KNX, RXB integration – S-Mode (CM1Y9775).
The following types are available for RXB:
● HVAC: Comprises all the HVAC information
● Shared: Contains shared data points (e.g., time schedules, occupancy status, etc.)