The SVEA Room Control System IRC (Integrated Room Controller) is a cost-saving and flexible automation system for the control of lighting, sunblind and room temperature.
The system comprises of the base module – the IRC Controller – and extension modules suitable for connection.
Operation of an IRC system furthermore requires power supply units and a terminator.
The IRC Controller allows connection of external devices via specialized bus systems for control of lighting (DALI) and sunblind (SMI). Exchange of data with room control devices is realized via a standard LON TP/FT interface. All further conventional sensors and consumer loads will be connected with the IRC-extension modules.
Shematic Diagram without Power Supply and Terminators
In its basic version the IRC Controller disposes the following interfaces:
 Ethernet interface (LON over IP) for crosslinking several IRC Controllers and
for connection of superior systems, for example building control systems
Standard TP/FT-LON interface for connection of LON control devices
Up to four Dali interfaces for control of 64 DALI devices each
Alternatively up to four SMI interfaces (SMI interface in preparation)
Internal bus for connection of the IRC extension modules and the power supply
EIA-232 interface for configuration of devices
Initiation and configuration is carried out via the Ethernet interface. The IRC System’s logic is user programmable and flexible for all demands. Actually, the extension modules only dispose of basic functions, whereas the intelligence is stored in the IRC Controller.
It is either possible to set internal parameters and configurations via LNS-Plug-ins or per standard Internet browser, without LON specific software, both ways are user-friendly.
The IRC System helps reduce integration costs by omitting time-consuming routine works. By means of an intelligent identification routine the IRC Controller is able to identify order and type of the connected IRC extension modules independently. Thus, looking for devices and pushing of service- pins are things of the past. However, initialization per service-pin optionally still is possible.
The common restrictions of LON devices, for example the limitation of 15 address table entries, no longer exist.
It is possible to read or set up to 512 network variables as well as to use the same amount of target addresses.
Multiple extension modules are being offered for the IRC System:
Switching actuator with four relay outputs (NO contacts, 16A), e.g. independent
switching of four loads
Switching actuator for independent switching of 8 loads
Motor control unit for independent control of four standard drives
Digital I/O module with eight 24 V AC semiconductor outputs for independent
switching of 8 load groups, in particular for control of electro-thermal valves,
as well as 8 inputs for connection of devices with potential-free contacts.
Analog input module with eight inputs for measuring current, voltage and
resistance values
Analog output module with eight outputs for current and voltage
Power is supplied via internal IRC Bus. One IRC power supply unit shall be provided per distributor. |
