Slave to slave communication method for circular local network for automated processes, involves using decentralized units

摘要

At least two subscribers of the network (4) can exchange data, without the use of a master structure (1), such that they provide suitable data memories (7,12), using a master protocol structure. The memories use special slaves (11,13) in the ring as a data source or sink. A slave (5) is brought into the ring structure to communicate bidirectionally with further slaves. The slaves also provide a memory (12) for data from the incorporated slave. Thus a transverse traffic is permitted without further activity of the master.