Nor (Not Or) - Siemens LOGO! Series Manual

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
148
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, 04/2011, A5E03556174-01
LOGO!