Nand (Not And); Table Of The Nand Logic - Siemens Logo! Manual

4.2.3 NAND (NOT AND)

Parallel circuit with multiple break
contacts in the circuit diagram:
The output of the NAND is only 0 if the status at all inputs
is 1, i.e. the contacts are closed.
At an unused block input (x): x = 1.

Table of the NAND logic

1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
LOGO! Manual
A5E00380835-01
2 3 4
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
LOGO! functions
Symbol in LOGO!:
Q
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
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