Ethernet-based real-time communications with PROFINET IO

The fieldbus systems have been successfully introduced in the industrial automation. Nowadays, a large community is inventing the usage of Ethernet-based local communication systems in this domain ensuring the real-time behaviour of these systems. Profinet IO provides the service definition and protocol specification for real-time communication based on Ethernet, IP, and UDP for the field area. It defines services and protocols mainly for communication between IO controllers (e.g. a PLC) and IO devices (e.g. Remote IO). It includes a QoS architecture for real time control and alarm messages taking precedence over parameter, diagnosis, or infrastructure messages including other TCP or UDP based protocols. High message priorities in combination with a time division multiplexing approach with direct data link layer access provide short cycle times and low jitter.

[1]  Magnus Jonsson,et al.  Switched real-time ethernet with earliest deadline first scheduling protocols and traffic handling , 2002, Proceedings 16th International Parallel and Distributed Processing Symposium.

[2]  Anjali Agarwal,et al.  Supporting Quality of Service in IP multicast networks , 2003, Comput. Commun..

[3]  Perry S. Marshall.  Industrial Ethernet , 2004 .

[4]  Eric Rondeau,et al.  Evaluation of switched Ethernet in an industrial context by using the Network Calculus , 2002, 4th IEEE International Workshop on Factory Communication Systems.

[5]  Kang G. Shin,et al.  Statistical real-time communication over Ethernet for manufacturing automation systems , 1999, Proceedings of the Fifth IEEE Real-Time Technology and Applications Symposium.

[6]  R. Caponetto,et al.  Fuzzy traffic smoothing: an approach for real-time communication over Ethernet networks , 2002, 4th IEEE International Workshop on Factory Communication Systems.

[7]  Hermann Härtig,et al.  Using Switched Ethernet for Hard Real-Time Communication , 2004, Parallel Computing in Electrical Engineering, 2004. International Conference on.

[8]  U. Killat,et al.  Global scheduling of periodic tasks in a decentralized real-time control system , 2004, IEEE International Workshop on Factory Communication Systems, 2004. Proceedings..

[9]  Youxian Sun,et al.  How to guarantee factory communication with switched Ethernet: survey of its emerging technology , 2002, IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.

[10]  Jurgen Jasperneite.  Leistungsbewertung eines lokalen Netzwerkes mit Class-of-Service Unterstützung für die prozessnahe Echtzeitkommunikation , 2003 .

[11]  P. Neumann,et al.  Architecture and model of Profinet IO , 2004, 2004 IEEE Africon. 7th Africon Conference in Africa (IEEE Cat. No.04CH37590).

[12]  Eduardo Tovar,et al.  Ethernet Goes Real-Time: a Survey on Research and Technological Developments , 2000 .

[13]  J. Loeser,et al.  Using Switched Ethernet for Hard Real-Time Communication , 2004 .

[14]  Corporate.  ISO-IEC 8802-6: 1994 ANSI-IEEE Std. 802.6 Information Technology - Telecommunications and Information Exchange between Systems - Local and Metropolitan Area Networks, Specific Requirements: Distributed Queue Dual Bus (Dqdb) , 1994 .

[15]  Baek-Young Choi,et al.  Probabilistic approach to switched Ethernet for real-time control applications , 2000, Proceedings Seventh International Conference on Real-Time Computing Systems and Applications.

[16]  Lucia Lo Bello,et al.  A distributed approach to achieve predictable Ethernet access control in industrial environments , 2003 .

[17]  Max K Adler,et al.  Naming and addressing , 1978 .

[18]  J. Jasperneite,et al.  Enhancements to the time synchronization standard IEEE-1588 for a system of cascaded bridges , 2004, IEEE International Workshop on Factory Communication Systems, 2004. Proceedings..