Basic Instructions
2 − 52
Counter operation when a set value area number is directly specified
1
When the trigger for a high−level instruction is on, the value is set in the set value area (SV). The
following diagram shows an example of using the high−level instruction F0 (MV).
F0 MV, K30, SV100
X1
X0
C100
Y30
CT
SV 100
100
X2
SV100
30
1
Transfers to SV area
2
When the reset input is off, the value in the set value area (SV) is preset in the elapsed value area
(EV).
X1
C100 Y30
CT
SV 100
100
X2
2
Presetting
SV100
30
EV100
30
3
Each time the count input X1 turns on, the value in the elapsed value area (EV) decrements.
X1
C100 Y30
CT
SV 100
100
X2
SV100
30
EV100
30
29
28
27
3
Decrements
4
When the elapsed value area (EV) reaches zero, the counter contact C with the same number turns
on.
X1
C100 Y30
CT
SV 100
100
X2
SV100
30
EV100
0
4
Decrement operation ends
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