The present invention suppresses the data size of a data frame to be transmitted to a control device at every control period even if oversampling is performed. A counter unit (10) compresses the data size of sampling data (Sd) indicating a second or subsequent count value (Ct) to the number of bits by which the maximum (Vmax) of a count value countable in one sampling processing can be represented.

A method for operating an application program for executing in an electric control unit for a drive system includes managing at least one application parameter using an application parameter manager.

A method for operating an application program for executing in an electric control unit for a drive system includes managing at least one application parameter using an application parameter manager.

A partial circuit selector selects a partial circuit comprising a plurality of contacts in a ladder diagram program. A replacement circuit generator generates a replacement circuit comprising a smaller number of contacts than in the selected partial circuit. An auxiliary circuit generator generates an auxiliary circuit that causes the replacement circuit to perform the same action as the partial circuit. A program editor performs, on the ladder diagram program, a replacement process for replacing a partial circuit appearing in the ladder diagram program with the replacement circuit, and performs an auxiliary circuit insertion process for inserting the auxiliary circuit into the ladder diagram program.

A control system, apparatus, and method are provided. In the control system, plural apparatuses in time synchronization with one another are connected to a network, and the network transfers a frame periodically exchanged by the apparatuses. The apparatuses include a control device and an apparatus controlled by the control device. Each apparatus in the control system is connected over the network, to a first apparatus that transmits a frame that arrives at each of the apparatuses and a second apparatus that receives a frame transmitted from each of the apparatuses. Each apparatus includes information on a frame transfer path and transfer timing based on a synchronous time. When a frame does not arrive at defined time through the transfer path and when a condition associated with a cycle is satisfied, one or more of the apparatuses is configured to transmit a resend request through the transfer path.

A control system includes a control unit, a transmission unit, an application execution unit, and an arbitration unit that arbitrates a data set exchanged between the transmission unit and the application execution unit. The arbitration means includes a first acquisition unit that acquires information about pieces of process data managed by the control unit, a second acquisition unit that acquires information about an application executed by the application execution unit, a determination unit that determines process data to be included in a data set based on the information about the pieces of process data acquired by the first acquisition unit and the information about the application executed acquired by the second acquisition unit, and a notification unit that notifies each of the transmission unit and the application execution unit of a content of the process data to be included in the data set determined by the determination unit.

A control system includes a control unit, a transmission unit, an application execution unit, and an arbitration unit that arbitrates a data set exchanged between the transmission unit and the application execution unit. The arbitration means includes a first acquisition unit that acquires information about pieces of process data managed by the control unit, a second acquisition unit that acquires information about an application executed by the application execution unit, a determination unit that determines process data to be included in a data set based on the information about the pieces of process data acquired by the first acquisition unit and the information about the application executed acquired by the second acquisition unit, and a notification unit that notifies each of the transmission unit and the application execution unit of a content of the process data to be included in the data set determined by the determination unit.

When a first reference item is selected, an information processing device duplicates a second reference item associated with a second setting screen belonging to another setting category related to a component, which is a setting target of a first setting screen associated with the first reference item, and duplicates a third reference item associated with a third setting screen, of which a setting target is another component electrically or mechanically connected to the component being the setting target of the first setting screen. The information processing device duplicates and collectively displays one or multiple reference items including at least one of the second reference item and the third reference item.

An industrial controller with a modular backplane includes multiple modules, where each module includes a base and a chassis. Electrical connectors located on each side of the base engage the base of an adjacent module such that the bases are electrically connected. The backplane is defined by and extends through each of the bases connected to each other. A chassis is inserted into each base. Each chassis includes an embedded switch and a local circuit. The embedded switch is in communication with the base, and the local circuit performs the operation of the corresponding module. The embedded switch receives data transmitted along the backplane between bases. The embedded switch reads the data intended for the module and passes the data to the local circuit for further processing. Similarly, the embedded switch receives data from the local circuit and inserts the data on the backplane for transmission to the appropriate module.

A control device includes a controller that executes a control arithmetic calculation controlling a control target; a communication device that executes processing for secure communication using a certificate; a detector that detects that an end of the certificate approaches; and a notification device that notifies that the end of the certificate approaches.