Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses
Reexamination Certificate
2006-04-11
2006-04-11
Elamin, A. (Department: 2116)
Electrical computers and digital processing systems: support
Synchronization of clock or timing signals, data, or pulses
C370S413000, C370S439000, C370S443000, C370S444000
Reexamination Certificate
active
07028204
ABSTRACT:
A method and system for transferring a plurality of messages in an Ethernet industrial control environment. The messages are tagged with identifiers of varying levels of priority. The system has a serial network bus. Clock synchronization messages generated by a master device are tagged with a higher priority identifier, while other message types are tagged with a lesser priority identifier. Data having the highest priority identifier is placed onto the bus before placing data with a lesser priority identifier onto the bus.
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Camerini Jacques
Jammes Francois
Lagier Julien
Elamin A.
Schneider Automation Inc.
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