Mitsubishi Electric WS0-CPU0 - XNOR (Exclusive NOR)

Chapter 9
131
Logic programming – Function blocks
9.7.5 XNOR (exclusive NOR)
Function block diagram
General description
The output is High only if both inputs are equivalent (have the same value: both inputs
High or both inputs Low).
Truth table
The following applies for the truth table in this section:
“0” means logic Low.
“1” means logic High.
Truth table for XNOR evaluation
Input 1 Input 2 Output 1
0 0 1
0 1 0
1 0 0
1 1 1
9.7.6 Multiple release
Function block diagram
General description
Using the multiple release function block an AND operator can be applied to up to 7
inputs along with the Release input (7-times AND).
Figure 103:
Function block diagram for
the Exclusive NOR (XNOR)
function block
Table 30:
Truth table for XNOR
evaluation
Figure 104:
Logic connections for the
multiple release function
block