Switching lights on in a time-delayed sequence, calling up specific light scenes directly using a pushbutton sensor, controlling the room temperature or creating other logical functions: With the logic module Gira L1, industrial buildings and properties of similar sizes featuring a KNX system can be easily equipped with a series of automated convenience functions. The intuitive Gira Project Assistant enables projects to be parametrised conveniently in just a few steps and easily modified at any time using drag & drop. A convenient logic editor guides the programmer to the desired result. Thanks to the simulation, configuration errors can be virtually ruled out, while the duration of start-up is shortened significantly. Each action performed in the Gira Project Assistant is automatically saved. All changes can be viewed and undone with the undo/redo function. Any desired status of the project can be restored just like if you had a time machine. The Gira logic module is mounted on a top-hat rail in the sub-distribution.