Network system of programmable controllers

Details Network system of programmable controllers Network system of programmable controllers

1989-09-07

1990-10-30

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, H04J 302, H04J 324

Patent

active

049674099

ABSTRACT:
Data receiving-and-transmitting stations are connected in a ring-shaped network, each transmitting data packets normally in the order in which they are received. Each station can identify a high-priority data packet and is programmed to transmit a high-priority data simutaneously with the normal-priority data packet which has been to be transmitted next according to the order in which it was received.

REFERENCES:
patent: 4312065 (1982-01-01), Ulug
patent: 4500987 (1985-02-01), Hasegawa
patent: 4726019 (1988-02-01), Adelmann et al.

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