Easy xLogic - Page 60

58
58
58
58
(Symbol in xLogic)
The output of an OR is 1 if at
at
at
at least
least
least
least one
one
one
one input is 1 hat, i.e. when it is closed.
A block input that is not used (x) is assigned: x = 0.
Logic table of the OR function:
Input
Input
Input
Input 1
1
1
1 Input
Input
Input
Input 2
2
2
2 Input
Input
Input
Input 3
3
3
3 Input
Input
Input
Input 4
4
4
4 Output
Output
Output
Output
0 0 0 0 0
0 0 0 1 1
0 0 1 0 1
0 0 1 1 1
0 1 0 0 1
0 1 0 1 1
0 1 1 0 1
0 1 1 1 1
1 0 0 0 1
1 0 0 1 1
1 0 1 0 1
1 0 1 1 1
1 1 0 0 1
1 1 0 1 1
1 1 1 0 1
1 1 1 1 1
4
4
4
4 .2.6
.2.6
.2.6
.2.6 NOR
NOR
NOR
NOR
(Symbol in xLogic)
The output of a NOR (NOT OR) is only 1 if all
all
all
all inputs are 0 hat, i.e. when they are open. When
one of the inputs is switched on (logical 1 state), the output is switched off.
A block input that is not used (x) is assigned: x = 0.
Logic table of the NOR function: