Controller

Abstract

Abstract PURPOSE:To execute the switching of backup without bumping of control and to diagnose the controller in operation, by transmitting all required data in the result of operation to the backup or the controller for diagnosis for each operating period of the controller. CONSTITUTION:A state signal 30 from a plant 3 being a controlled system is inputted at the 1st automatic controller 1 and the specified operation processing is applied to the state signal 30 to output a control signal 10. Further, all the results of required operations are transmitted to a data transmitter/receiver 6 via a data transmitter/receiver 5. Moreover, the 2nd automatic controller 2 compares all the results of required operations for each period of the control operations compared with the corresponding data stored in the device 6 to correct them with the result of own operations and applies them to a switch 4 as a control signal 20. Then, the switching of backup is executed without bumping of control, allowing to diagnose the controller 1 during operation.

Inventors

• 👤 Kazuo Takazawa
• 👤 高沢　一男

Bibliographic Details