METHOD FOR SYSTEM SWITCHING PROCESSING FOR DUPLEX CONSTITUTION CONTROL SYSTEM

摘要

PURPOSE: To easily execute the maintenance processing of a stand-by system control device by automatically executing the initializing processing of a device means in the stand-by system control device prior to the switching of processing to a working system. ;CONSTITUTION: This system switching processing method is constituted of a duplex constitution control system 1 provided with a working system control device 2 to be operated as a working system and a stand-by system control device 3 to be operated as a stand-by system and a slave system 4 connected to the system 1 and a master system 5 connected to the system 1. When fault information is generated or it becomes it regular system switching time, a system switching commanding means 6 in the device 2 generates a switching command signal for commonding switching to a working system to the device 3. At the time of receiving the command signal, an initializing means 8 in the device 3 executes the initializing processing of a device means 7. Then the device 3 starts operation as a working system in response to the switching command signal.;COPYRIGHT: (C)1994,JPO&Japio