Automation system`s cycle time stabilizing method for e.g. nuclear plant, involves forming cyclic process such that additional process is shifted when cyclic process does not disturb cycle start before starting cycle start

摘要

The method involves releasing starting of a cyclic process (P) by an interrupt, and accessing an additional process e.g. control process, in identical system resources (13). The interrupt is caused by a time signal periodically emitted by a system time transmitter. The cyclic process is formed in such a manner that the additional process is shifted when the cyclic process does not disturb the cycle start before starting the cycle start while the cycle start with the time signal takes place.