METHOD FOR SWITCHING CONTROLLER IN DECENTRALIZED SYSTEM

摘要

PURPOSE:To automatically switch a faulty controller to another controller without using any controller for management, by providing plural sets of standby controllers. CONSTITUTION:A controller group II is composed of plural sets of controllers 3-1-3-n. A standby controller group III is composed of plural standby controllers 4-1-4-m. Each controller is connected with another by means of time division transmitters 2-1-2-(n+m). The standby controllers have the same constitution as the controllers. A controller function section IV carries out ordinary operations of the controllers. A standby controller function section V carries out operations when one of the controllers becomes a standby machine. The two function sections can be switched to each other by means of a switch 27. When the power supply to the controllers is made and at the initial time of the controllers themselves, the switch 27 is set to the B side as an initial state and the controllers 4-1-4-m function as standby controllers.