05065314 is referenced by 27 patents and cites 12 patents.

A method and circuitry for communicating both byte transfer I/O data and file transfer I/O data to an individual I/O module through an equipment chassis backplane in a programmable controller. The byte transfer data is real time I/O data representing the status of I/O devices on an industrial machine or process. The file transfer data includes fault diagnostic data concerning conditions of the I/O devices in addition to their ON or OFF state. The circuitry is integrated into a single integrated circuit. The methods and circuitry are applicable to two different modes of addressing, one mode being used by earlier programmable controller processors and adapters and the other mode being used by newly developed processors and adapters.

Title
Method and circuit for automatically communicating in two modes through a backplane
Application Number
7/249415
Publication Number
5065314
Application Date
September 23, 1988
Publication Date
November 12, 1991
Inventor
George D Maskovyak
Parma
OH, US
Agent
Quarles & Brady
Assignee
Allen Bradley Company
WI, US
IPC
G06F 13/38
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