TY - GEN
T1 - Network time synchronization in a safe automation network
AU - Novak, Thomas
AU - Sevcik, Berndt
PY - 2008/5/23
Y1 - 2008/5/23
N2 - Today there is a great request of using automation networks in safety critical environments. Thus, such systems used in industrial and building automation have been enhanced with safety features derived from strict safety requirements specified in IEC 61508. One of the safety requirements to be met is the detection of hazardous events on the network such as the delay of a message. A safety measure to identify these hazardous events is the use of a timestamp within a safe protocol. However, a common time base among the nodes must be provided - by means of a network time synchronization mechanism. A centralized and decentralized approach was developed within the SafetyLon project. Realization of the concept and implementation in the producer/consumer model of SafetyLon is outlined.
AB - Today there is a great request of using automation networks in safety critical environments. Thus, such systems used in industrial and building automation have been enhanced with safety features derived from strict safety requirements specified in IEC 61508. One of the safety requirements to be met is the detection of hazardous events on the network such as the delay of a message. A safety measure to identify these hazardous events is the use of a timestamp within a safe protocol. However, a common time base among the nodes must be provided - by means of a network time synchronization mechanism. A centralized and decentralized approach was developed within the SafetyLon project. Realization of the concept and implementation in the producer/consumer model of SafetyLon is outlined.
UR - http://www.scopus.com/inward/record.url?scp=56349108223&partnerID=8YFLogxK
U2 - 10.1109/WFCS.2008.4638717
DO - 10.1109/WFCS.2008.4638717
M3 - Conference contribution
SN - 9781424423491
T3 - IEEE International Workshop on Factory Communication Systems - Proceedings, WFCS
SP - 305
EP - 313
BT - WFCS 2008 - 2008 7th IEEE International Workshop on Factory Communication Systems Proceedings
PB - IEEE
T2 - 2008 IEEE International Workshop on Factory Communication Systems
Y2 - 21 May 2008 through 23 May 2008
ER -