User Manual

System overview
Room automation
3
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3.3 Room automation
The room automation is part of the automation level. The room automation
includes devices for the control functions within a room.
There are RX room controllers and Desigo PXC3/DXR2 room automation
stations.
The PXC3/DXR2 room automation stations have the following functions:
● Measuring, controlling and processing of I/O signals
● Logging trend data
● Monitoring process variables and generating alarms
● Acknowledging and resetting alarms
● Monitoring process variables for value changes
● Exchanging data with clients and other automation stations
● Monitoring hardware and software functions and generating events in case
of faults or errors
● Processing BACnet access for operation and monitoring of one or multiple
clients
● Handling errors, e.g., during data point exchange
The PX automation stations carry out coordination functions (Desigo room
automation system functions), such as time synchronisation, life check,
scheduling, etc., for the room automation stations.
Desigo supports the following communication technologies:
● BACnet
● KNX technology
● DALI (Digital Addressable Lighting Interface)
● LonWorks technology (only for RX)
Desigo room automation (PXC3..)
In Desigo room automation freely programmable PXC3 room automation
stations control the room climate. The Desigo room automation product range
integrates several disciplines (HVAC, lighting, shading). A room automation
station can cover several rooms. The room automation stations are integrated
seamlessly into Desigo PX and the management level via BACnet/IP.
Buttons, sensors, and actuators are connected to the PXC3 room automation
via TX-I/O modules or KNX PL-Link modules.
The KNX interface of the PXC3 room automation stations allows the direct
integration of devices with KNX PL-Link and KNX S-Mode in Desigo room
automation. KNX PL-Link is fully compliant with the KNX standard. The PXC3
room automation stations support plug and play functionality with automation
device detection. Devices with KNX PL-Link are parameterized with the Desigo
tools. The KNX commissioning software (ETS) is not needed.
The PXC3.. room automation stations have an integrated web server for IP
communication with QMX7.E38 touch room operator units. Engineering access
is available via the web interface.
A subset of the available TX-I/O modules can be used with the PXC3
automation station.
The DALI (Digital Addressable Lighting Interface) bus of the PXC3...A room
automation station lets you integrate lighting.
The PXC3.E16A room automation station is tailored for lighting applications. It
has an on-board DALI interface for integrating up to 64 ECGs (electronic
control gear).
Desigo room automation (DXR2..)
The DXR2 room automation stations let you automate heating, ventilation, air
conditioning, shading, and lighting for rooms.