4
4-9GFK-0787B Chapter 4 PLC Subsystem
Voting with Three Discrete Inputs
For a triplex input group with three inputs present, the GMR software performs 2 out of
3 voting.
Field Input
Data
Input A
Input B
Input C
0
1
1GMR Software Performs
2 out of 3 Voting
1
Single Input Provided
to Application Logic
Duplex State 1
Default State 0
The Duplex State and Default State are not used when three field inputs are available.