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:
Jun. 30, 2020
Filed:
Aug. 16, 2017
Omron Corporation, Kyoto-shi, Kyoto, JP;
Takamasa Mioki, Moriyama, JP;
Mizuki Mori, Kusatsu, JP;
OMRON Corporation, Kyoto-shi, JP;
Abstract
A control unit included in a PLC generates power-cut retaining information to be retained at a power cut, and stores the generated power-cut retaining information into a main memory. The control unit includes a file system unit for reading and writing target information from and into a nonvolatile memory. When the file system unit receives a power cut notification indicating a cut of power fed while reading or writing target information from or into a nonvolatile memory, the file system unit stops the reading or writing process, and writes the power-cut retaining information stored in the main memory into the nonvolatile memory using power fed from the auxiliary power supply.