gefran VDI100 Series Instruction Manual page 289

Input from ladder program
I1 i2
C3
m1
M2
Input from the function program
Up/down counting
0000
M2
0020
I3
I3 ON reset
Counter value
Counter mode 2
Counter input pulse
Note:
In this mode the internal counter may increase past the counter compare value, unlike mode 1 where the internal
counter value is limited to the counter compare value.
(1) Counter mode 3 is similar to the counter mode 1, with the exception that the counter value is saved when
the drive is powered down and reloaded at power up.
(2) Counter mode 4 is similar to the counter mode 2, with the exception that the counter value is saved when
the drive is powered down and reloaded at power up.
Counter input pulse
Power switch
VDI100 • Instruction manual
C3 input pulse counter is
[C3]
determined by I1 and i2.
[Q1]
q1 [M2]
Internal
Counter Value
C3 turns ON when the counter value
reaches the set Value and at the same
time, the C3 input in the ladder program
turns ON as well.
C3
Counter compare value
5
4 0
19 19 20 20
2
3
6
OFF
5
4
Mode 1 & 2 1 1 2 2
4
Mode 3 & 4 1 1 2 2 3
6
20
21 21 20 20 19
20 18 18 19 19
OFF
ON
OFF
ON
20
0 1 1 2 2
3 4 4 5 5
20 0 20 20
ON
ON
OFF
ON
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