This paper presents a proposal for the implementation of the local modular supervisory control theory focused on the cost. From the approach based on the controllable languages, the paper explores the accomplishment of the theoretical model in low cost platforms, based on small-sized PLCs, micro-controllers and commercial electronic devices. A control structure is, then, proposed as the adequate solution for small and medium size manufacturing automated systems. In order to demonstrate the efficiency of the proposal, a didactic workbench is used to simulate the current manufacturing system.