Safety control system for an elevator, escalator or moving walkway, including driving means, where the control system comprises: a central control unit, at least one electronic safety node (1,2,6), a secure communication bus for two-way communication between two or more safety nodes (1,2,6), and for communicating the safety nodes (1,2,6) with the central control unit, a plurality of safety switches (1',2',6') connected in series forming a safety chain, at least one state detector of at least one of the components of the elevator, escalator or moving walkway, wherein each electronic safety node (1,2,6) is functionally associated with at least one safety switch (1',2',6') for controlling the activation thereof, characterized in that at least one electronic safety node (1,2,6) is communicated with at least one state detector of a component, and it is programmed for processing a signal received from said detector, wherein the electronic safety nodes (1,2,6) are programmed for transmitting to one another and to the central control unit, by means of the secure communication bus, information relating to the state of at least one safety switch (1',2',6') associated with a safety node (1,2,6), and information relating to at least one signal received from at least said state detector of a component, wherein each safety node (1,2,6) is programmed for controlling its associated safety switch (1',2',6') depending on the information received from another safety node (1,2,6) and depending on the information received from its own detectors, and wherein the central control unit is programmed for acting on the driving means of the elevator, escalator or moving walkway. a central control unit, at least one electronic safety node (1,2,6), a secure communication bus for two-way communication between two or more safety nodes (1,2,6), and for communicating the safety nodes (1,2,6) with the central control unit, a plurality of safety switches (1',2',6') connected in series forming a safety chain, at least one state detector of at least one of the components of the elevator, escalator or moving walkway, wherein each electronic safety node (1,2,6) is functionally associated with at least one safety switch (1',2',6') for controlling the activation thereof, characterized in that at least one electronic safety node (1,2,6) is communicated with at least one state detector of a component, and it is programmed for processing a signal received from said detector, wherein the electronic safety nodes (1,2,6) are programmed for transmitting to one another and to the central control unit, by means of the secure communication bus, information relating to the state of at least one safety switch (1',2',6') associated with a safety node (1,2,6), and information relating to at least one signal received from at least said state detector of a component, wherein each safety node (1,2,6) is programmed for controlling its associated safety switch (1',2',6') depending on the information received from another safety node (1,2,6) and depending on the information received from its own detectors, and wherein the central control unit is programmed for acting on the driving means of the elevator, escalator or moving walkway.