The invention relates to a bus system having a master and a group of slaves connected thereto via a bus and to a communication method for interchanging data between the master and slaves in such a bus system. At least one communication frequency is associated with each slave in the group. The master places transmission data at different communication frequencies onto the bus in transmission phases. Each slave in the group reads in and processes those transmission data which have been placed onto the bus by the master at a frequency corresponding to the, or a, communication frequency associated with this slave and ignores and rejects those transmission data which have been placed onto the bus by the master at a frequency corresponding to a communication frequency associated with another slave in the group, with the result that each slave in the group can be individually addressed by the master by virtue of the fact that transmission data are transmitted from the master to each of the slaves in the group at that communication frequency which has been associated with said slave.