The present invention relates to a system for controlling a process comprising a control unit including a controller, capable of transmitting data to at least one actuator capable of affecting said process, which may be controlled by said controller, at least one sensor capable of measuring parameters of said process and transmitting data to said controller, wherein said control unit is arranged for wireless communication over a wireless network, and wherein said controller and one of said at least one actuator or said at least one sensor are co-located such that communication between them is not transmitted over the wireless network.