And With Edge Evaluation; Timing Diagram For The And With Edge Evaluation - Siemens Logo! Manual

LOGO! functions

4.2.2 AND with edge evaluation

Symbol in LOGO!:
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 cy-
cle.
At an unused block input (x): x = 1.

Timing diagram for the AND with edge evaluation

1
2
3
4
Q
Cycle
118
1 2 3 4 5 6
10
7 8 9
LOGO! Manual
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