MITSUBISHI ELECTRIC 700 Series - Manual (Page 89)

84
Counters C
3.10.1 Count processing in refresh system
The counter counts on the leading edge of the input condition of the counter imported
at an input refresh.
Fig 3.19 Counter Counting Method
Ladder example
Counting method
REMARKS
Refer to page 85 for the maximum counting speed of the counter.
When OFF to ON of X5 is counted
twice, C3 contact turns on.
Input (X) refresh
END END
OUT
C3 OUT
C3 END OUT
C3 END OUT
C3 END OUT
C3
END
2 1
OFF
ON
OFF
ON
OFF
ON
OFF
0
ON
X5
X5
(Image)
C3 coil
C3 present
value
C3 contact
Does not count since X5 remains on.