1. An address assignment method for at least one bus device ( 2 ′) that has been newly connected to a bus system, whereby the bus device ( 2 ′) is first addressable at a pre-set address ( 126 ), whereby a bus master ( 1 ) transmits a new address (x) and an identification (k) to the bus device ( 2 ′), whereby the bus device ( 2 ′) compares the transmitted identification (k) with an identification (k′) stored in the bus device ( 2 ′), and whereby the bus device ( 2 ′) assumes the transmitted new address (x) if the transmitted identification (k) corresponds to the identification (k′) stored in the bus device ( 2 ′), whereby the bus device ( 2 ′) is then addressable at the new address (x).