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Fault tolerant computer system for control and monitoring of technical process of automation system - detects current data values of first control program and transfers to second computer at corresponding program stage
Fault tolerant computer system for control and monitoring of technical process of automation system - detects current data values of first control program and transfers to second computer at corresponding program stage
The system includes at least one first computer (7) on which a control program is loaded for detection, processing and/or outputting process and control data (19) for the automation system. On at least one second computer, an identical second control program (10) is loaded. The second program waits for a predetermined program stage. A data updating program (42) is loaded and run on the first and the second computer. This program detects the current data values of the first control program of the first computer at a predetermined program stage, transfers them to the second computer, and stores them at the corresponding locations in the program sequence and in reserved memory locations of the second, waiting control program.
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