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6-31GFK-0787B Chapter 6 Configuration
Similarly, select which Voting Adaptation method will be used for each
circuit.
Vote Adapt Mode: Specify the manner in which the PLCs should perform
voting adaptation. During operation, if a failure (discrepancy fault, Autotest
fault, or Genius fault) occurs, the GMR software will reject the faulty data
and perform voting adaptation as configured here.
For a triplex group, if input voting should go from three inputs to two inputs to
one input, select 3–2–1–0. If voting should go from three inputs to two
inputs to the default state, select 3–2–0.
For a duplex group, if input voting should go from two inputs to one input,
select 3–2–1–0. If voting should go from two inputs to the default state,
select 3–2–0.
For a simplex group, select 3–2–1–0.
Duplex State:
For a triplex group, the Duplex State determines the vote type when there
are just two inputs present. Its operation is described on page 4-8.
Using 0 as the Duplex State means that when two I/O blocks
(duplex) are online, the voted input state will be 0 if either input sets
it to 0. It will not be 1 unless both inputs set it to 1.
Similarly, using 1 as the Duplex State means that when two blocks
are online, the voted input state will be 1 if either input sets it to 1. It
will not be 0 unless both of the inputs set it to 0..
For a duplex group, this state is used as the third input in the 2 out of 3 vote.
For a simplex group, this field does not apply.
Vote
Adaptation