User Manual
CM2N8877en / 01.05.02 Siemens Building Technologies
2/4 Building Automation
To integrate DESIGO RX in VISONIK, the RX controllers are defined during
engineering as VISONIK data points in the process image of the RX master as:
– HVAC rooms and groups
– Blinds groups
– Lighting groups
@TCG3
@TCR22
@TCR21
NIDES.RX
LON
@TED
@AO35'1
33 34 35
.TEC33
.TEC34
.TEC35
RX
@AO35'5
15
RX
RX
RX
RX
8877Z02en
Room 21 Room 22
HVAC group 3
Process image
Light
Blinds
RX master
During operation, the RX controllers and the RX master continuously exchange the
latest information via the NIDES.RX interface.
The RX controllers are mapped in the RX master via special data points, similar to
those used to integrate the TEC individual room controllers in the BPS:
Point types Information
@TCR
TEC rooms
TEC rooms comprise 1 to max. 10 RX controllers (master – slave
principle) according to their arrangement in the building. TEC rooms
contain information such as:
– The most important actual values of the room.
– Defaults from the higher group.
– Addresses of the allocated RX controllers, etc..
@TCG
TEC groups
(HVAC)
TEC groups comprise several TEC rooms according to the
climatic/technical zones or occupancy profiles. TEC groups contain
information such as:
– Operating mode (Comfort, Comfort Reduced, Economy, Standby)
and setpoints.
– Setpoint correction according to outside air temperature.
– Minimum, maximum, median values for room temperatures, etc..
@TED
Energy demand
The energy demand points in the RX master gather the energy
demand of individual controllers and forward the demands.
– Up to 30 RX controllers featuring the same type of energy (e.g.
hot water, chilled air, etc.) are grouped in one TED.
– Calculation of minimum, median, and maximum value by TED.
@AO / @AI
Blinds and
lighting groups
The DESIGO RX modular devices enable blinds and lighting group
control. Integration occurs via link points (@AO / @AI). The groups
are formed as the basic elements by means of the basic RX
controller. The lighting or blinds portion of the RX controller can be
assigned to several lighting or blinds groups at the same time.
Max. 30 to 80 applications or RX controllers can be integrated for each RX master /
NIDES (max. 30 for complicated, integrated applications with lighting and blinds
control, max. 80 for simple radiator applications).
Integration
Principle
Point types and
information
System capacity