These are the winners of the 1st quarter of 2022
The 3 winning logics at a glance
1st place: Solar surplus for hot water boiler
by Klaus Hofmann
With this logic group, the solar surplus of a PV system can be used with the help of a heating cartridge in the hot water boiler (built-in heating cartridge with 3 identical heating rods) to save gas or oil, for example. The existing surplus electricity is read out via the Smart Meter, for example. There are two usage variants within the logic group. The first variant works with a dimmer (“switching” & “absolute dimming”) and two further switching outputs to control the power continuously. In the second variant, the two-step switching is used if there is no dimmer and only the 2 switching outputs are used.
2nd Place: Using the ventilation system smartly
by Jochen Mälzer
The 2nd logic group controls a Novus Paul F300 ventilation system as needed via an analogue KNX 0-10V output (4-fold). The functions of this logic group can be used, among other things, to open windows, heat in summer and control via KNX/LAN. The logic group also activates/deactivates various operating modes (off, normal and night operation, shock ventilation) via a time programme. Manual control is also possible at any time. Thus, the ventilation system can also be controlled via LAN/WLAN (via a visualisation) or the time programmes can be changed. In addition, from a certain difference (the average temperature of all rooms facing south and the outside temperature), it is decided whether shading is necessary. If necessary, this switches off the ventilation system and deactivates the shock ventilation.
3rd Place: Query electricity prices and control Wallbox
by Patrik Granqvist
These two logic groups were sent in for the common use case of charging an electric car: The first logic group “Tibber API” retrieves the current hourly electricity price and the current price level. In addition, the logic group sends the current electricity price to the KNX bus.
The second logic group “Garo GLB” is able to switch the charger (wallbox) on and off and send the current charging status to the KNX bus. In addition, the current status (Not Connected, Charging, Charging Off and Charging Done) is sent to the KNX bus as text and the current charging power in kW. Another function of this logic group is to calculate the total consumed kWh of the current day and month and also transmit it to the KNX bus.
In this way, the first logic group is used sensibly to switch the charger on and off depending on the price level and thus only charge at a desired price level (as favourable as possible). In addition, the read and calculated values are mapped in the CUBEVISION 2.
The LOGIKEDITOR is a web application for creating automation functions within the EIBPORT and LOGIKMODULE. The logic groups offered serve only as orientation aids and are intended to demonstrate solution approaches for your own development. You can find further information under https://www.logikeditor.de/en/ueber-den-logikeditor/.