IDEC SmartRelay FL1D Series, User Manual, Page: 126 / 336

IDEC SmartRelay functions
IDEC SmartRelay Manual
116
4.2.3 NAND (not AND)
Symbol in IDEC SmartRelay:
Parallel circuit with multiple normally
closed 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 2 3 4 Q
0 0 0 0 1
0 0 0 1 1
0 0 1 0 1
0 0 1 1 1
0 1 0 0 1
0 1 0 1 1
0 1 1 0 1
0 1 1 1 1
1 0 0 0 1
1 0 0 1 1
1 0 1 0 1
1 0 1 1 1
1 1 0 0 1
1 1 0 1 1
1 1 1 0 1
1 1 1 1 0
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