Abstract: A modular command device for electrovalve islands having: an input module selected from an input module of the parallel type or the serial type having an input connector to receive the command signals of a user and an output connector to transmit at least the command signals received; a valve command module for controlling a plurality of electrovalves including: an input connector designed to be connected directly or indirectly to the output connector of the input module; a communication BUS of the parallel type and a communication BUS of the serial type dedicated to transmitting the command signals received by the input module; an electronic processing and control unit connected to the communication BUS of the parallel type and to the communication BUS of the serial type, the electronic processing and control unit being configured to extract from the communication BUSes the command signals for the electrovalves to the control of which the valve command module is dedicated and to transmit the corresponding v