State Industries GFK-0827 manual Fault Detection and Control Actions

Contents

Section 2: Fault Detection and Control Actions	72
Fault Detection	72
Fault Categories	72
Changing Fault Category Actions	73
PLC Fault Table	74
Faulting RCMs, Losing Links, and Terminating Communications	75
Fault Actions in a CPU Redundancy System	77
On-Line Repair	80
Maintaining Parallel Bus Termination	80
On-Line Repair Recommendations	80
Power Supply	81
Racks	81
Central Processor Unit	81
Redundancy Communications Module and Cables	81
Redundancy Communications Link Failures	82
Bus Transmitter Module	82
Genius Bus Controller	82
Genius Bus	83
Genius Blocks	83
Appendix A Redundancy Alternatives	85
Redundancy Alternatives	85
Series 90-70 Redundancy Through Application Logic	88

GFK±0827 Series 90±70 Hot Standby CPU Redundancy User's Guide ± December 1993

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