ANORDNING FOR ATT ETABLERA OCH UPPRETTHALLA KOMMUNIKATION MELLAN EN STYRANDE MODUL OCH EN ELLER FLERA INGANGS/UTGANGSMODULER

摘要

Apparatus under microprocessor control for use in communicating over a serial communication loop with a remote attached control unit. It is capable of establishing frame synchronization, interpreting commands, assembling data and transmitting bits on the loop. The apparatus also communicates with I/O devices over a demand/response interface.