| 摘要 |
A redundant control system having at least a first and a second control computer ( 1,2 ) and at least one peripheral unit ( 5 ) that is connected to the control computers ( 1,2 ) by a bus system ( 3,4 ). Both control computers transmit cyclically changing signs of life (LzX, LzY) to the peripheral unit ( 5 ), which checks whether a change in the signs life has taken place within a given time period and which switches to the other control computer for executing the control tasks if the change in the sign of life is not timely received.
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