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. 22, 2005
Filed:
Sep. 19, 2000
Tsuyoshi Yamashita, Nagoya, JP;
Masaharu Fujisaki, Nisio, JP;
Hidetoshi Kato, Kariya, JP;
Hiroyuki Takahara, Chiryu, JP;
Tsuyoshi Yamashita, Nagoya, JP;
Masaharu Fujisaki, Nisio, JP;
Hidetoshi Kato, Kariya, JP;
Hiroyuki Takahara, Chiryu, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
In a monitor apparatus for a sequential-function-chart-type programmable controller, a standard value of an active time of an arbitrary step in a sequential-function-chart program is stored, and the active time of the arbitrary step is measured during execution of the program. An anomalous state of the arbitrary step is detected through comparison between the measured active time and the reference value. Further, data indicating whether each step in the sequential-function-chart program has been executed are stored. The program is displayed such a manner that an anomalous step, a step or steps which have been executed, and a step or steps which have not yet been executed are distinguished from one another.