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:
Feb. 19, 2019
Filed:
Jan. 15, 2014
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventors:
Yuuki Kurokawa, Yamanashi, JP;
Yasushi Nomoto, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 9/03 (2006.01); G05B 19/406 (2006.01); G05B 19/409 (2006.01);
U.S. Cl.
CPC ...
G05B 19/406 (2013.01); G05B 9/03 (2013.01); G05B 19/409 (2013.01); G05B 2219/24184 (2013.01); G05B 2219/25163 (2013.01);
Abstract
A key switch on a machine control panel is provided with two contacts such that the machine control panel can include two independent communication circuits. Signals from a double-contact key switch are received by the two communication circuits, and safety-related signals are transmitted from the communication circuits to a numerical controller through a bus. The signals received by the numerical controller are compared with each other so that they can be made to comply with the safety standards by monitoring the integrity of the safety function.