Table of Contents
Advertisement
Table 27:
Truth table for OR
evaluation with two inputs
Table 28:
Truth table for OR
evaluation with eight inputs
Figure 102:
Function block diagram for
the Exclusive OR (XOR)
function block
Table 29:
Truth table for XOR
evaluation
Logic programming – Function blocks
Truth table for OR evaluation with two inputs
Input 1
Input 2
Output 1
0
0
1
x
1
x
Truth table for OR evaluation with eight inputs
Input 1
Input 2
Input 3
0
0
0
1
x
x
1
x
x
x
x
1
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
9.7.4
XOR (exclusive OR)
Function block diagram
General description
The output is High only if both inputs are complementary (i.e. with contrary values: one
input High and one input Low).
Truth table
The following applies for the truth table in this section:
"0" means logic Low.
"1" means logic High.
Truth table for XOR evaluation
Input 1
Input 2
0
0
0
1
1
0
1
1
0
1
1
Input 4
Input 5
0
0
x
x
x
x
x
x
1
x
1
x
x
x
x
x
x
x
Output 1
0
1
1
0
Input 6
Input 7
Input 8
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
1
x
x
1
x
x
x
x
1
Chapter 9
Output 1
0
1
1
1
1
1
1
1
1
130
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
