In the Enermedic, we only connect energy efficiency hardware to the loads without defining energy efficiency hardware to the main board, and after a while the energy efficiency hardware with the lowest NAD address on the loads is automatically connected to the main board. Why is this caused?

In accordance with the Enermedic's working principle, in case no hardware is connected to the main panel, the energy efficiency hardware with the lowest NAD address is automatically connected to the main panel. Loads of the Enermedic cannot be displayed properly without connecting hardware to the main board.

However, the user can manually define an imaginary hardware to the Enermedic and connect it to the main panel if he wishes. Although the Enermedic does not communicate with this imaginary hardware, the automatic hardware discovery behavior will be terminated as it will continue to be used as the main board hardware.