Omron Corporation

Hisanori Igarashi

Yoichi Kurokawa

Masanori Ota

Takahiro Toku

Yoshitaka Takeuchi

Fumiaki Konishi

A control apparatus includes: a management unit that updates internal state values for each control period with a state value generated in a subject to be controlled; a feature quantity extraction unit that calculates a feature quantity from a change of a second internal state value for each unit section determined according to a value of a first internal state value; and an abnormality detection unit that generates detection results indicating whether any abnormality has occurred in a subject to be monitored included in the subject to be controlled, on the basis of the feature quantity. The feature quantity extraction unit and the abnormality detection unit output the values of the first internal state value used to determine the unit section, in correspondence with the corresponding unit section.

Control apparatus and non-transitory computer readable medium for detecting abnormality occurring in subject to be monitored

This monitoring system, which monitors communication related to an FA network, comprises: data collection units () that collect data indicating a communication status on the FA network; a data analysis unit () that analyzes the collected data according to pre-registered information related to settings for communication on the FA network, and generates monitoring setting information for monitoring the communication; and monitoring units () that monitor, according to the monitoring setting information, a communication to be monitored.

Monitoring system, setting device, and monitoring method

A technique capable of preventing the loss of packet data for any appropriate one of controllers connected to the same network is provided. An FA system includes a plurality of controllers. Each of the controllers includes: a buffer; a communication module for performing packet communication with one or more other controllers; a packet monitor module for buffering packet data generated in its own controller and packet data received by its own controller in the buffer; and a stop module for stopping, in response to a predetermined stop condition being satisfied, a buffering function of the packet monitor module for a controller specified from the plurality of controllers.

Factory automation (FA) system, controller, and control method

A programmable logic controller () is connected to external equipment () through a serial communication unit (), and the programmable logic controller () includes: a memory (), including a user program () and a setting document (), where the user program () records both of a command for the communication interface device and command target information thereof, and the setting document () saves address information corresponding to the command target information; and a processor (), reading the user program () and the setting document () to execute the command.

Growing community of inventors

Muko, Japan

Hisanori Igarashi