Counters
117
1SVC 440 795 M0100
Example of a two counter cascade
Another counter is added to the previous example. As the
contact of counter C2 is only set to 1 for one program cycle,
the carry of counter C2 is transferred to counter C3. The
counter C3 prevents further counting when its setpoint is
reached.
Example: Up/down counting with a scan for actual
value = zero
The input I6 contains the necessary counter information and
controls the count coil CC6 of counter 6. Marker N2 is set if
the setpoint is reached. Marker N2 controls the direction coil
DC6 of counter C6. If N2 is 1 (activated), counter C6 counts
down. If the actual value of the counter is 00000, the analog
Circuit diagram display Parameter settings of the
counter C2
Parameter settings of the
counter C3
25000 pulses are
counted. 25
x1000 =
25000
I6-c3----CC2
C2------uÄM8
dRC2
hCC3
C3-------ÄQ2
I8-Q2----RC3
C2 N +
S 01000
C3 N +
S 00025
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