Programmable controller with expandable I/O interface circuitry

Details Programmable controller with expandable I/O interface circuitry Programmable controller with expandable I/O interface circuitry

1982-09-08

1985-03-12

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 906

Patent

active

045049270

ABSTRACT:
A programmable controller has eight I/O buses which will support a corresponding number of I/O modules. The I/O capacity of the programmable controller may be increased by replacing four of the I/O modules with an I/O address module and three I/O interface modules that drive I/O expansion buses. Up to eight I/O racks, each containing three I/O modules and one adaptor circuit, can be connected to the I/O expansion buses.

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