GE GFK-0787B Discrete Input Fault Contacts for GMR, Discrete Output Fault Contacts for GMR

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7-22 Genius Modular Redundancy Flexible Triple Modular Redundant (TMR) System
User’s Manual – March 1995 GFK-0787B
Discrete Input Fault Contacts for GMR
In the discrete Input Table there are fault contacts associated with each item of voted
input data, non-voted input data, and “raw” data input from bus A, B, and C:
Discrete Input Table
Voted Inputs
Non-voted Inputs
Input
Voting
Logic
Bus A inputs A
B
C
Bus B inputs
Bus C inputs
Reserved inputs
Fault contacts are set for:
Input Genius faults
Input discrepancy faults for A, B, and C inputs
Input autotest faults
Line faults
See page 5-25 for detailed information on conditions that cause fault contacts to be set.
Discrete Output Fault Contacts for GMR
For discrete outputs, fault contacts are associated with logical outputs (outputs from the
application program). These logical references are copied to the physical output references. If
a fault is detected on a physical output, the fault contact associated with that output’s logical
reference is set.
Logical
reference Physical reference
Fault
contact
Contact References Associated with an Output
Fault contacts are set for:
Genius faults
Discrepancy faults
Autotest faults
See page 5-26 for detailed information on conditions that cause fault contacts to be set.