User Manual

System configuration
Desigo room automation system function group limits
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These limits apply only to IP-based DXR2 devices.
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These limits apply to MS/TP-based DXR2 devices.
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Multiple IP segments per BACnet internetwork.
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One IP segment per BACnet internetwork.
For more information about networks, see Application Guide for IP Networks in
Building Automation Systems
(CM110668).
22.3 Desigo room automation system function
group limits
A Desigo room automation system function group comprises parts of the
Desigo room automation stations on the BACnet internetwork. Grouping occurs
based on Desigo room automation stations assignment to PX system function
responsible for the Desigo room automation subsystem functions.
Desigo room automation defines Desigo room automation system functions
comprising life check and time synchronization.
The current limits for the Desigo room automation system function group are
mainly imposed by life check and scheduling carried out by the Desigo room
automation system function PX.
A PXC3 generally controls several (about 5..8) multiple rooms. The number of
rooms in the Desigo room automation system function group are the decisive
factor for some limits.
Desigo room automation stations are not part of a PX site. Data are not aligned
between the primary PX site and the Desigo room automation stations.
Desigo room automation stations do not support BBMDs. This restricts the
BACnet/IP network, that is, all Desigo room automation stations and their
Desigo room automation system function PX or a PXG router must be located in
the same IP segment.