LOGO! Manual
A5E00380835-01
122
4.2.6 NOR (NOT OR)
Circuit diagram of a series cir-
cuit with several break contacts:
Symbol in LOGO!:
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.
Table of the NOR logic
1234Q
0 0 0 0 1
00010
00100
00110
01000
01010
01100
01110
10000
10010
10100
10110
11000
11010
11100
11110
LOGO! functions
To Next Page
Loading...
