FAULT SENSING SYSTEM FOR SENSING FAULT IN PLURALITY OF CONTROL SYSTEMS

摘要

An objective of the present invention is to link and sense faults in a plurality of industrial control systems. A fault sensing system which senses faults in a plurality of control systems comprises a plurality of analysis devices which are disposed to correspond with each of the plurality of control systems, acquire an event which occurs with the corresponding control system and analyze whether the acquired event is a fault. A first analysis device of the plurality of analysis devices assesses whether a second analysis device of the plurality of analysis devices should be notified of the event which occurs with the corresponding control system. The second analysis device determines that a fault has occurred on condition that a correlation exists between the event of which the second analysis device is notified by the first analysis device and an event of which the second analysis device is notified by an analysis device other than the first analysis device.