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LOGO! functions
4.2 Basic functions list - GF
4.2.6

NOR (not OR)

The output status of the NOR is only 1 if all inputs are 0, i.e. if switched off. The NOR output
is set to 0 when one of the inputs is switched on (logical 1 status).
At an unused block input (x): x = 0.
NOR function logic table
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
112
2
3
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
4
Q
0
1
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
Manual, 10/2017, A5E01248535-AA
LOGO!

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