GE GFK-0787B user manual Vote Adaptation, Vote Adapt Mode

6

Vote Adaptation

Specify how each circuit in a triplex or duplex group should utilize vote adaptation For a simplex group, this option does not apply.

If a failure (discrepancy fault, or Genius fault) occurs, the GMR software rejects the faulty data. Depending on the configuration entered here, input voting may go from three inputs to two inputs to one input, or from three inputs to two inputs to the configured default value.

For a 4 input/2 output block group, the window shows only four inputs.

Vote Adapt Mode:

For a Triplex group, if voting should go from three inputs to two to one, select 3±2±1±0. If voting should go from three inputs to two to the default value, select 3±2±0.

For a duplex group, if voting should go from two inputs to one, select 3± 2± 1± 0.

If voting should go from two inputs to the default value, select 3± 2± 0.

Duplex State:

For a triplex group, the Duplex State determines the vote type when there are two analog inputs present. It may be configured as the higher actual input value, the lower value, or an average of the two. For more information, see page 4-13.

For a duplex group, the voted input data can be:

Han average of the two channels that are present.

Hmid-value selection based upon the two input channels that are present, with the third (unused) channel assigned to its configured low value.

Hmid-value selection based upon the two input channels that are present, with the third channel assigned to its configured high value.

For a simplex group, this information is not used.

6-34	GeniustModular Redundancy Flexible Triple Modular Redundant (TMR) System	GFK-0787B
	User's Manual ± March 1995