Method and device for serial data transfer

摘要

The method involves the base module (6) sending a module recognition byte (2) to one expansion module (7a), which sends a module identification byte to the base module, in at least one transmission cycle, the base module sending the end of the transmission cycle to the expansion module in a feedback signal (5), the base and expansion modules exchanging data packets (4) in a further transmission cycle and. the base module sending the end of the transmission cycle to the expansion module in a further feedback signal (5a). Independent claims are also included for the following: (1) a device for implementing the inventive method (2) and a method of serial data transmission.