And With Edge Detection; Nand (Not And) - IDEC SMARTRELAY User Manual

IDEC SmartRelay functions
4.2 Basic functions list - GF
4.2.2

AND with edge detection

The output of an edge-triggered AND is only 1 if all inputs are 1 and if at least one input was
low in the previous cycle.
At an unused block input (x): x
Timing diagram for the AND with edge detection
4.2.3

NAND (not AND)

The output of the NAND is only 0 if the status at all inputs is 1, that is, the contacts are closed.
At an unused block input (x): x
NAND function logic table
1
0
0
0
0
0
0
0
0
1
1
118
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1.
1.
2 3
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0 0
0 0
4
0 1
1 1
0 1
1 1
0 1
1 1
0 1
1 1
0 1
1 1
IDEC SmartRelay Manual