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:
Aug. 25, 2020
Filed:
Mar. 27, 2018
Denso Wave Incorporated, Chita-gun, Aichi-pref., JP;
Takaaki Maekawa, Aichi-pref, JP;
DENSO WAVE INCORPORATED, Aichi-Pref., JP;
Abstract
An input/output module includes a control unit and a monitoring unit. The monitoring unit includes a series-connection body including three or more resistors, a comparator, a connection path, and a switch. One of inverting and non-inverting input terminals of the comparator serves as a monitoring terminal, and the other serves as a threshold terminal. Input voltage of the threshold terminal when the switch is turned off is set to a high-voltage-side threshold, and the input voltage when the switch is turned on is set to a low-voltage-side threshold. The control unit makes a diagnosis that an abnormality in which the power supply voltage falls outside of an operable voltage range or an abnormality in the monitoring unit has occurred, when logic of an output signal of the comparator is determined to be unchanged over a determination time that is a longer amount of time than a predetermined amount of time.