Communication network apparatus

Details Communication network apparatus Communication network apparatus

1991-11-06

1996-12-17

Heckler, Thomas M.

G06F 1516

Patent

active

055862594

ABSTRACT:
A communication network apparatus accessed to a programmable logic controller (PLC) exclusive network from a manufacturing automation protocol (MAP) network. The PLC exclusive network uses an authorized protocol due to a specific vendor. A station number and control data within the PLC exclusive network is described by the same format (in a unified manner), Access is made from a host computer to PLC local stations in a gate-way manner (i.e., through a gate-way machine or apparatus).

REFERENCES:
patent: 4831582 (1989-05-01), Miller et al.
patent: 4989139 (1991-01-01), Friedman et al.
W. Stallings, "Local Networks", Macmillan Publishing Company, N.Y., 1984 pp. 293-309.

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