IDEC FL1E SmartRelay - Manual (Page 131)

IDEC SmartRelay functions
IDEC SmartRelay Manual 117
NAND function logic table
4.2.4 NAND with Edge Detection
Symbol in IDEC SmartRelay:
The output status of the NAND with Edge Detection is only 1
if at least one input is 0 and if all inputs were 1 in the
previous cycle.
At an unused block input (x): x = 1.
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