Mitsubishi Electric WS0-CPU0 - Edge Detection

Chapter 9
144
Logic programming – Function blocks
9.7.13 Edge detection
one bypass conditionsFunction block diagram
General description
The Edge detection function block is used to detect a positive (rising) or negative
(falling) edge of the input signal. The function block can be configured to detect a
positive edge, a negative edge or both. If an edge corresponding to the parameter
settings is detected, the Edge Detected output changes to High for the duration of the
logic execution time.
Parameters of the function block
Parameter Possible values
Edge detection  Positive
 Negative
 Positive and negative
Sequence/timing diagram
Figure 120:
Function block diagram for
the Edge detection function
block
Table 43:
Parameters of the Edge
detection function block
Figure 121:
Timing diagram for the Edge
detection function block