The invention relates to a controlled device (1, 1′), a system (25, 25′) comprising such controlled device (1, 1′) and a controller device (21), a method for setting up such controlled device (1, 1′) and a software product for a set up processor (3, 3′) of such controlled device (1, 1′). In order to allow the controlled device (1, 1′) to persistently stay within the framework of the system (25, 25′) over its power cycles while avoiding or at least reducing a need for a costly element like a NVRAM on the side of the controlled device (1, 1′). Rather than providing costly NVRAM in the controlled device (1, 1′), the controlled device (1,1′) is just provided with fixed information which allows the controlled device (1,1′) to receive or obtain the variable control data from the controller device (21) as an outside source.