Abstract: A control system includes a control apparatus functioning as a master, and plural slaves which are network-connected to the control apparatus. The slaves each have identification information. The control apparatus includes executes a first instruction to set specified identification information to each of one or more specified slaves. The control apparatus outputs first error information indicating which slave that the setting of the identification information to which is failed, among the one or more specified slaves.

Abstract: Provided is a control device comprising a communication management part and a user application processing part. The user application processing part is for detecting slave devices, which are communication targets of control data having been set using a setting tool, and the slave devices are connected to a filed bus. The communication management part is for managing the communication of the control data in accordance with a control cycle. The communication management part determines the control cycle using a pre-stored propagation delay time for each of the slave devices that are the communication targets of the control data.

Abstract: Provided is a control device comprising a communication management part and a user application processing part. The user application processing part is for detecting slave devices, which are communication targets of control data having been set using a setting tool, and the slave devices are connected to a filed bus. The communication management part is for managing the communication of the control data in accordance with a control cycle. The communication management part determines the control cycle using a pre-stored propagation delay time for each of the slave devices that are the communication targets of the control data.

Abstract: A master device, slave device, error monitoring system, and control method and control program of master device are provided. According to the present invention, in the connection less communication, no matter in operation or not, the generation of the communication errors can be monitored. The master device comprises: an indication sending part, sending an indication enabling a plurality of slave devices to send an error log; an error log receiving part, receiving the error logs; and a storing part, storing the error logs by corresponding to each of the slave devices.

Abstract: The invention is adapted to acquire more useful log data. A master device (4) includes a timer element (45), adapted to acquire a moment; an instruction sending element (421), adapted to synchronize a moment measured by a slave timer element (14) of slave devices (1-3) with a moment acquired by the timer element (45) according to a time synchronization instruction containing moment information corresponding to the moment acquired by the timer element (45); and a slave log receiving element (423), adapted to receive slave logs (131).

Abstract: The invention is adapted to acquire more useful log data. A master device (4) includes a timer element (45), adapted to acquire a moment; an instruction sending element (421), adapted to synchronize a moment measured by a slave timer element (14) of slave devices (1-3) with a moment acquired by the timer element (45) according to a time synchronization instruction containing moment information corresponding to the moment acquired by the timer element (45); and a slave log receiving element (423), adapted to receive slave logs (131).

Abstract: A controller enables execution of control programs in parallel using a multi-core processor in shorter cycles without causing communication collisions. The controller executes control programs in multiple cycles. In accordance with the priorities assigned to a control program 1 and a control program 2, the controller controls the timing to execute communication associated with the control program 2 without colliding with communication with external devices associated with the control program 1.

Abstract: A master device, slave device, error monitoring system, and control method and control program of master device are provided. According to the present invention, in the connection less communication, no matter in operation or not, the generation of the communication errors can be monitored. The master device comprises: an indication sending part, sending an indication enabling a plurality of slave devices to send an error log; an error log receiving part, receiving the error logs; and a storing part, storing the error logs by corresponding to each of the slave devices.

Abstract: The invention is adapted to acquire more useful log data. A master device (4) includes a timer element (45), adapted to acquire a moment; an instruction sending element (421), adapted to synchronize a moment measured by a slave timer element (14) of slave devices (1-3) with a moment acquired by the timer element (45) according to a time synchronization instruction containing moment information corresponding to the moment acquired by the timer element (45); and a slave log receiving element (423), adapted to receive slave logs (131).

Abstract: A controller enables execution of control programs in parallel using a multi-core processor in shorter cycles without causing communication collisions. The controller executes control programs in multiple cycles. In accordance with the priorities assigned to a control program 1 and a control program 2, the controller controls the timing to execute communication associated with the control program 2 without colliding with communication with external devices associated with the control program 1.

Abstract: A backup method includes the following processes. Backup data is temporarily stored in a volatile memory. An erased area is saved in a flash memory for the backup data. The erased area is free of data. The backup data is written in the erased area.