Array electronic FAB Series - Nand; Nor

C
hapter
Ⅲ
G
eneral
D
escriptions
for
F
unction
B
locks
Logical frame of “NOT”:
I 1 Q
0 1
1 0
3.1.4 NAND
This function block is called NAND, because only when all of I1, I2 and I3 are
in status 1 (i.e. close), its Output Q is in status 0.
Logical frame of “NAND”:
3.1.5 NOR
The electrical line diagram for paral-
lel connection of certain number of
NC contacts is shown as follows
The symbol of NAND in FAB is
shown as follows:
The electrical line diagram for parallel
connection of a certain number of NC
contacts is shown as follows:
The symbol of NOR in FAB is
shown as follows:
19
I1 I2 I3 Q
0 0 0 1
0 0 1 1
0 1 0 1
0 1 1 1
1 0 0 1
1 0 1 1
1 1 0 1
1 1 1 0
Q
11
12
13
11
12
13