Expanding the grandMA3 system is simple with addition of grandMA3 processing units! The grandMA3 processing unit M increases the overall grandMA3 system by 4,096 parameters and enables the system designer to expand the lighting control system in small steps. Besides the powerful CPU for frame-synchronous calculation, the grandMA3 processing unit M additionally offers a Mode2 to expand existing grandMA2 systems by 4,096 parameters.