Swegon Ventilation Binding

Documentation of the Swegon ventilation binding Bundle

Introduction

Swegon ventilation is used to get live data from from Swegon ventilation systems. Binding should be compatible at least Swegon CASA models.

Swegon gateway

swegongw is application read telegram from serial port (need RS-485 adapter) and relay untouched telegrams to openhab via UDP packet. Swegon ventilation binding listening UDP port and parse register data from UDP telegrams.

C code is available on here

build command:

gcc -std=gnu99 -o swegongw swegongw.c

execution:

swegongw -v -d /dev/ttyUSB0 -a 192.168.1.10

Swegongw help is avail be by command execution:

swegongw -h 

For installation of the binding, please see Wiki page Bindings.

Binding Configuration

openhab.cfg file (in the folder '${openhab_home}/configurations').

######################## Swegon ventilation Binding ###################################
#
# UDP port (optional, defaults to 9998)
# swegonventilation:udpPort =9998

The swegonventilation:udpPort value specify UDP port which binding will listening. Configuration is optional, by default binding listening UDP port 9998.

Item Binding Configuration

In order to bind an item to the device, you need to provide configuration settings. The easiest way to do so is to add some binding information in your item file (in the folder configurations/items`). The syntax of the binding configuration strings accepted is the following:

swegonventilation ="<data>"

Where

<data> corresponds the data item. See complite list below.

List of supported data items

Data	Item Type	Purpose	Note
T1	Number	Temperature sensor 1
T2	Number	Temperature sensor 2
T3	Number	Temperature sensor 3
T4	Number	Temperature sensor 4
T5	Number	Temperature sensor 5
T6	Number	Temperature sensor 6
T7	Number	Temperature sensor 7
T8	Number	Temperature sensor 8
OutdoorTemperature	Number	Temperature sensor	T1
SupplyAirTemperature	Number	Temperature sensor	T2
ExtractAirTemperature	Number	Temperature sensor	T3
SupplyAirTemperatureReheated	Number	Temperature sensor	T4
ExhaustAirTemperature	Number	Temperature sensor	T8
SupplyAirFanSpeed	Number	Fan speed rpm
ExtractAirFanSpeed	Number	Fan speed rpm
Efficiency	Number	Efficiency	Calculated by system
EfficiencySupply	Number	Efficiency	Calculated by binding
EfficiencyExtract	Number	Efficiency	Calculated by binding
FanSpeed	Number	Fan speed	Fan speed 1…5
PreheatState	Switch	Heating	Preheat state
ReheatState	Switch	Heating	Reheat state

Examples

Number	OutdoorTemperature	{ swegonventilation="OutdoorTemperature" }
Number	SupplyAirFanSpeed	{ swegonventilation="SupplyAirFanSpeed" }
Switch	Preheat	                { swegonventilation ="PreheatState" }