User Manual

System overview
Communication principles
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BACnet standard device profile
The BACnet standard defines several device profiles that simplify to judge (and
test) a device's capabilities against a specified function set. Desigo always tries
to work with such profiles and prove their fulfillment by independent test
laboratories and respective BTL logos and BACnet certificates.
● The PXC3 and DXR2 room automation stations comply with the B-ASC
standard device profile.
● The PXC automation stations comply with the B-BC standard device profile.
● The Desigo CC management platform complies with the B-AWS standard
device profile.
For a complete list with additional details, see
BACnet Protocol Implementation
Conformance Statement (PICS) (CM110665) and the products page of the BIG-
EU website (www.big-eu.org).
AMEV guideline
Desigo complies with the AMEV guideline BACnet 2011 Version 1.2 with the
following profiles:
● Desigo CC: AMEV profile MOU-B
● Desigo PX: AMEV profile AS-B
Desigo room automation
BACnet is used to exchange information between PX automation stations and
DXR2 and PXC3 room automations stations and the management platform.
Desigo RX
The Desigo RXB room automation range communicates via KNX S-Mode (EIB).
Restrictions for LonWorks
A LonWorks network cannot be segmented with LonWorks routers, as the
message length for BACnet is 228 bytes for performance reasons. Commercially
available LonWorks routers do not have sufficiently large buffers for this length.
No other media (power lines, infrared, etc.) can be used either.
BACnet server BACnet client
D-MAP program
Application
process
(Visualisation)
Process and
configuration
data
BACnet objects
BACnet protocol
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