The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 1985
Filed:
Sep. 08, 1982
Applicant:
Inventor:
John E Callan, Milwaukee, WI (US);
Assignee:
Allen-Bradley Company, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ;
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.