Communication controller for coordinating transmission of...

Details Communication controller for coordinating transmission of... Communication controller for coordinating transmission of...

2004-07-30

2009-02-24

Orgad, Edan (Department: 2419)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S359000

Reexamination Certificate

active

07496099

ABSTRACT:
A device on a process control network transmits scheduled messages at periodic intervals and unscheduled messages between scheduled message transmissions. A dynamic time remaining value is produced by subtracting a current timer value from a next scheduled event time each time the timer is incremented. If the time required to transmit an unscheduled message is greater than the time remaining value, the message is not transmitted.

REFERENCES:
patent: 6564268 (2003-05-01), Davis et al.
patent: 2001/0036181 (2001-11-01), Rogers
patent: 2002/0031086 (2002-03-01), Welin
patent: 2003/0165116 (2003-09-01), Fallon et al.
patent: 2006/0007871 (2006-01-01), Welin

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