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:
Oct. 22, 2019
Filed:
Nov. 23, 2016
Applicant:
Yokogawa Electric Corporation, Tokyo, JP;
Inventors:
Hiroaki Nakajima, Tokyo, JP;
Noriko Kase, Tokyo, JP;
Kiyotaka Kozakai, Tokyo, JP;
Atsushi Terayama, Tokyo, JP;
Assignee:
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
G05B 13/022 (2013.01); H04L 43/0852 (2013.01); H04L 43/0858 (2013.01); H04L 43/106 (2013.01); G05B 2219/25256 (2013.01);
Abstract
A process control system includes: a controller; at least one input and output module connected to the controller; and an allowable propagation delay value calculator in the controller, the allowable propagation delay value calculator being configured to calculate, based on the number of input and output modules connected to the controller, an allowable range for propagation delay time between the controller and the input and output module.