Bus system and method for operating the bus system

<?claim ?>Bus system (1) for real-time communication of a superordinate unit (11,) With one or more subordinate units (12, 13) For exchanging address and data information via a bus (15) wherein the rapid exchange of messages between fields (42, 43) For the address and data information other fields (44) Are provided, characterized, that the parent unit (11) A radio unit (21) And the subordinate units, one or more additional devices (22, 23, 24, 25) are.