Abstract: An access authority is set for each data referred to by a program. A control system includes a control unit that controls a control target, a storage unit that stores a program executed by the control unit and each access authority for each of data referred to by the program, and an input unit that receives an access request for any one of the data. Each access authority includes information about an operation that can be executed by a user having each authority. The control unit refers to each access authority based on acquisition of the access request for any one of the data from the input unit, and determines whether the user who transmits the access request has the access authority for the data for which the access is requested based on each access authority.

Abstract: Reliability of an instrument connected to a control device is verified. A control system includes a control unit and a communication unit. The control unit and the communication unit are configured to be detachable. The control unit authenticates the communication unit connected to the control unit using a common key, and allows the communication unit to access data in the control unit based on a result of the authentication checking that the communication unit has the common key.

Abstract: 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.

Abstract: This monitoring system, which monitors communication related to an FA network, comprises: data collection units (253, 282, 260, 624) that collect data indicating a communication status on the FA network; a data analysis unit (622) 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 (251, 252, 1012, 1010) that monitor, according to the monitoring setting information, a communication to be monitored.

Abstract: A communication monitoring system includes a production data generation module, a data collection module, a data analysis module, and a data display module. The production data generation module generates production data representing a condition of production by a production device. The data collection module collects communication data representing a condition of communication on a network to which the production device is connected, and collects the production data. The data analysis module associates the communication data with the production data that are collected by the data collection module, in such a manner that the communication data is synchronized with the production data. The data display module performs a process for displaying the communication data and the production data that are associated with each other.

Abstract: This monitoring system, which monitors communication related to an FA network, comprises: data collection units (253, 282, 260, 624) that collect data indicating a communication status on the FA network; a data analysis unit (622) 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 (251, 252, 1012, 1010) that monitor, according to the monitoring setting information, a communication to be monitored.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A programmable logic controller (10) is connected to external equipment (40) through a serial communication unit (30), and the programmable logic controller (10) includes: a memory (7), including a user program (11) and a setting document (13), where the user program (11) records both of a command for the communication interface device and command target information thereof, and the setting document (13) saves address information corresponding to the command target information; and a processor (8), reading the user program (11) and the setting document (13) to execute the command.

Abstract: A programmable logic controller (10) is connected to external equipment (40) through a serial communication unit (30), and the programmable logic controller (10) includes: a memory (7), including a user program (11) and a setting document (13), where the user program (11) records both of a command for the communication interface device and command target information thereof, and the setting document (13) saves address information corresponding to the command target information; and a processor (8), reading the user program (11) and the setting document (13) to execute the command.