Wind Gauge

APPLICATION

The function block “Wind Gauge” can convert pulses from a digital anemometer (wind sensor) into a wind speed. In addition to the current wind speed, the average speed of the last 3 seconds, as well as an averaged speed over a user-defined period, are calculated.

An output for a storm warning is also integrated into the module.

BASIC CONFIGURATION

FREQUENCY MEASUREMENT

Icon Exclamation Mark LoxoneThe digital wind sensor must be connected to a digital input of the extension or the DI extension, not the Miniserver, Dimmer Extension or Multi Extension Air. The maximum measurable frequency is 150 Hz.

It is important that the input is defined as a frequency counter. Simply select the input and activate the frequency counter checkbox in the properties.

Loxone Config Digital Input as Frequency Counter

If the wind sensor is connected to a digital input of multi Extension Air, the speed is transmitted every minute. Therefore, the factor must be divided by 60 for the calculation. For the wind meter from the Loxone Webshop, the value F for the parameter F is thus 0.067.

The digital input defined as a frequency counter is linked to input AI of the Wind Gauge function block.

The conversion factor can be set via parameter F. This factor is shown in the data sheet of the sensor. If the wind sensor provides 1 pulse/second per km/h then the factor is 1 because: 1 pulse/s = 1Hz = 1km/h. However, this may vary from sensor to sensor.

At the output AQ, the average wind speed is provided over the average time period T.

With parameter W, a warning speed can be defined. If this speed is exceeded, output Q goes to 1. (= storm warning)

Wind Gauge Loxone Config

INPUTS

InputNameDescriptionRange of ValuesUnit
AIFrequency InputThe digital input defined as a frequency counter is linked here.Hz

PARAMETERS

ParametersNameDescriptionRange of ValuesUnit
TTimeAveraging time in minutesmin
FConversion FactorConversion factor from Hz to km / h or m / s (or other unit, depending on data sheet)
WWarning SpeedLimit value for storm warning. Warning output becomes active from this speedKm/h

OUTPUTS

OutputNameDescriptionRange of ValuesUnit
AQAverage wind speedAverage wind speed in the averaging period TKm/h
AQgMaximum wind speedMaximum wind speed (of the last 3 seconds)Km/h
AQmMaximum wind speedMaximum wind speed in the mean period TKm/h
QStorm warningGo to 1 when the warning speed W is exceeded.0/1

The conversion factor for this sensor is 1, because: 1 Pulse/s = 1Hz = 1km/h

If the wind sensor is connected to a digital input of the MultiExtension Air, the speed is transmitted per minute. Thus the factor must be divided by 60 for the calculation. For the wind meter from the Loxone Webshop, the value F for the parameter F is therefore 0.0677