A method of transmitting data in a synchronous communications network, which includes multiple nodes, includes communicating a super frame that includes multiple frames, based on a network cycle, each frame being associated with one of the nodes. Each frame includes a payload that includes an own data section and a repeat data section. The nodes include at least one relay node associated with an application generating own data of the relay node to be transmitted to at least one second node. The relay node receives frames from other of the nodes, reads a predetermined part of data from the received frames, which enables repeat data to be obtained, writes the repeat data in the repeat data section of a new frame, writes the own data of the relay node in the own data section of the new frame, and transmits the new frame.