Title :
A high-performance CAN-like arbitration scheme for EtherCAT
Author :
Cena, Gianluca ; Bertolotti, Ivan Cibrario ; Valenzano, Adriano ; Zunino, Claudio
Author_Institution :
IEIIT-CNR, Torino, Italy
Abstract :
EtherCAT is a popular Ethernet-based solution conceived for connecting devices at the shop floor in industrial environments. Even though it features very high communication efficiency, that permits thousands of I/O points to be periodically exchanged between controlling devices and decentralized periphery with cycle times well below 1 ms, it is not able to cope in a proper way with event-driven systems, where lots of devices may be producing asynchronous information in a sporadic and unpredictable way. In this paper, some modifications to the basic EtherCAT protocol are proposed which enable CAN-like arbitrations to take place in such networks, so as to achieve a true priority-based access scheme.
Keywords :
local area networks; production engineering computing; EtherCAT; Ethernet-based solution; event-driven systems; high-performance CAN-like arbitration scheme; industrial environments; Access protocols; Communication industry; Communication system control; Control systems; Electrical equipment industry; Ethernet networks; Logic; Master-slave; Network topology; Proposals;
Conference_Titel :
Emerging Technologies & Factory Automation, 2009. ETFA 2009. IEEE Conference on
Conference_Location :
Mallorca
Print_ISBN :
978-1-4244-2727-7
Electronic_ISBN :
1946-0759
DOI :
10.1109/ETFA.2009.5347000
