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:
Jun. 13, 1989
Filed:
Jun. 16, 1988
Applicant:
Inventor:
Neil W Knutsen, Milwaukee, WI (US);
Assignee:
Allen-Bradley Company, Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ;
Abstract
A programmable controller includes a processor unit which connects to one or more I/O units that connect to sensing devices and operating devices on equipment being controlled. When placed in the RUN mode, the processor determines the number of I/O units required to execute the user control program, and during each subsequent I/O scan, the number of connected and operating I/O units is checked to insure proper operation.