KNX Weather station

The KNX weather station detects the meteorological data "Wind speed", "Wind direction", "Precipitation", "Global radiation", "Temperature", "Twilight", and "4 directions of brightness". In addition, the "relative humidity" and "air pressure" are measured. The position of the mounting location of the weather station can be determined via GPS. The "maximum value of the brightness sensors", the "absolute humidity", "felt temperature" and "comfort" are calculated using the acquired data. The main area of application is automatic, weather-independent control of shading. To increase function safety, the weather station monitors some key functions itself and automatically signals appropriate errors to the bus using signal objects. Using the values measured by the weather station, which can be sent to the bus via communication objects, the appropriate bus subscribers can control weather-dependent processes and can also visualise the climate or display specific measured values. The weather station intended for external mounting on a mast or on the wall. Evaluation of the data, in particular limiting value processing, takes place in the weather station. An integrated heater provides protection against function restriction due to frost or dew down to -20 °C. In addition, the heater protects the sensor surface of the precipitation sensor by providing quick drying after rain and thawing in case of snow and ice. The weather station requires an external 24 V AC/DC power supply to supply the unit. The applied voltage can be monitored. The failure of the external power supply is then signalled to the bus via a communication object. Logic gates are available in order to cascade multiple weather stations or to gate the limiting values and the monitoring functions. Disabling modules make it possible to block individual functions on site. www.warema.com/knx