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:
Jul. 19, 1994
Filed:
Nov. 13, 1991
Applicant:
Inventors:
Kunio Tanaka, Akishima, JP;
Yasushi Onishi, Minamitsuru, JP;
Assignee:
Fanuc Ltd., Minamitsuru, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
364147 ; 364191 ;
Abstract
A symbol definition system for a programmable machine controller (PMC) for defining symbols (signal names) in a sequence program of the PMC. Since the function of the signals between the PMC and a numerical control apparatus is fixed, a first group of symbols is supplied to a program creation unit as system data, and therefore, when a sequence program is created, the first group of symbols need not be defined. Further, the first group of symbols is transferred to the PMC together with the sequence program and used for editing and maintenance.