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Siemens Building Technologies CM2N8877en / 01.05.02

Building Automation 1/4

VISONIK

BPS communication with

DESIGO™ RX

Function sheet

DESIGO RX is a communicative individual room control system for HVAC

applications with integrated control for blinds and lighting. Communication takes

place via the LON bus (LonMark standard). If a VISONIK system is used for higher

room management, the building process station (BPS) server as the

communication master (RX master).

The DESIGO RX controllers on the LON bus are connected to the BPS as RX master

and to the VISONIK data and communication server (DCS) via the NIDES.RX interface.

The application software loaded determines the RX controller's functionality. There are

applications for fan coil and VAV systems, for heating/chilled ceilings and radiators,

and applications featuring integrated blinds and lighting control.

NIDES.RX

DESIGO RX

Auto

- +

Auto

DCS / Insight

LON bus

8877Z01en

BPS

RX master

LON stands for local operating network, a global field bus defined by the LonMark

standard.

The RX master functions in the BPS either directly or indirectly allow for the following

higher functions:

• Coordination or control functions on the automation level (VISONIK BPS).

• Management functions on the management level (DESIGO INSIGHT or VISONIK

Insight).

The detailed functionality depends on the respective RX application and the number of

controllers integrated per RX master as well as on the level of integration of both

automation station or management station requested by the customer.

Use

Topology / RX

applications

LON bus

RX master functions

Summary of content (4 pages)

PAGE 1
8 877 VISONIK® BPS communication with DESIGO™ RX Function sheet DESIGO RX is a communicative individual room control system for HVAC applications with integrated control for blinds and lighting. Communication takes place via the LON bus (LonMark standard). If a VISONIK system is used for higher room management, the building process station (BPS) server as the communication master (RX master).
PAGE 2
Integration 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 Process image @TED @TCG3 @TCR21 .TEC33 .TEC34 8877Z02en Principle @AO35'5 @TCR22 .TEC35 @AO35'1 RX master NIDES.
PAGE 3
Operation Options The controllers integrated as data points can be operated via: • PC with VISOTOOL Editor. • Insight station on the DCS: Pictures created for each project. • POP cards: Standard cards or cards created for each project. DCS / Insight POP Cards Lighting/blinds groups HVAC groups Rooms LON 8877Z03en HVAC group VISOTOOL Editor Blinds Room What can I operate? Light Room Operation as a rule accesses all data points integrated in the RX application.
PAGE 4
Plant example Floor plan / situation The following example shows a floor plan with an integrated HVAC + blinds and lighting RX application. Situation: – The North and South sides of the floor each consist of 6 room modules with one RX controller and the controller's peripherals. The corresponding TEC rooms are defined according to the room modules (master/slave relations where needed). – The offices and production are located in different HVAC zones, but have the same occupancy hours.