Function Blocks
3.2.62 NOR_ - NOR Logic
NOR_ function blocks perform a logical NOR on the three
inputs. Any unused input will be set low (0).
A
B
C
NOR TRUTH TABLE
.
A
B
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
BLOCK DIAGRAM
3.2.63 NOT_ - NOT Logic
NOT_ function blocks perform a logical NOT on input
A. Any unused input will be set low (0).
A
Input A
.
BLOCK DIAGRAM
3-62
NOR
O1
.
C
Output 1
0
1
1
0
0
0
1
0
0
0
1
0
0
0
1
0
O1
Output 1
.
NOR
NOR_
ESN = 000
Input A
A
NOR
Input B
B
Input C
C
N
U
T
I
P
A
INPUT A
..........
(H)
I
N
P
U
T
B
..........
INPUT B
(H)
I
N
P
U
T
C
INPUT C
..........
(H)
E S N
Exec. Seq. No.
(H)
NOT
NOT_
ESN = 000
NOT
Input A
A
I
N
P
U
T
A
INPUT A
...........
loop tag.block tag.output
(H)
E S N
................ 001 to 250
Exec. Seq. No.
(H)
UM353-1
O1
Output 1
loop tag.block tag.output
(null)
loop tag.block tag.output
(null)
loop tag.block tag.output
(null)
................ 001 to 250
O1
Output 1
(null)
March 2003