System and method for controlling at least one device (2, 3) such as for example an operator for a door, a gate, a window, blinds, shutters, a curtain, an awning or a light source. The system includes at least one controllable unit (10, 14) associated with the at least one device and a plurality of nodes (12, 16, 19, 20, 22) for transmitting control signals to the at least one controllable unit (10, 14). At least one of the plurality of nodes (12, 16, 19, 20, 22) for transmitting control signals are configured for transmitting a command originator, the command originator including an identification of a predetermined type of the node (12, 16, 19, 20, 22), from which the signal originates.