GE GFK-0787B Noise Reduction Machine User Manual


 
6
6-55GFK-0787B Chapter 6 Configuration
Results of Block Voting with Only Two PLCs Online
In the two tables below, PLC C is shown as offline, but it could be either
of the other two instead.
Using 0 as the Duplex Default state means that when only two PLCs are
online, the voted output state will be 0 if either PLC sets it to 0. It will
not be 1 unless both online PLCs set it to 1.
PLC A
Output
State
PLC B
Output
State
PLC C
Output
State
Duplex
Default
Setting in
Block
Voted
Output
State
0 0 0 0
0 1 0 0
1 0 0 0
1 1 0 1
Similarly, using 1 as the Duplex Default state means that when only two
PLCs are online, the voted output state will be 1 if either PLC sets it to 1.
It will not be 0 unless both of the PLCs set it to 0..
PLC A
Output
State
PLC B
Output
State
PLC C
Output
State
Duplex
Default
Setting in
Block
Voted
Output
State
0 0 1 0
0 1 1 1
1 0 1 1
1 1 1 1