Chapter 5 Relay Ladder Logic Programming 89
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High Speed Counter Mode 8 (DC powered versions only)
The Mode 8 High Speed Counter can use either
input terminals I01 or I02 for forward up-counting to
1 KHz maximum at 24VDC high speed input signal.
It will reflash its counted value in each “fixed time”.
When the counted value reaches or excesses the
“Preset ON”, then the selected counter coil turns
ON at the next cycle. If the counted value change to
a value less than “Preset ON” but still large than
“Preset OFF”, it still retains ON state. The counter coil does not turn OFF at next cycle until the counted value less
than “Preset OFF”. The counter will reset when the preceding rung is inactive. The table below describes each
configuration parameter for High Speed Counter Mode 8.
Symbol Description
①
Counting Mode (8) high speed counting
②
High speed counting input terminal: I01 or I02 only
③
Counting interval time: 0~99.99 sec
④
Counter ‘on’ preset Value, range: 0~999999
⑤
Counter ‘off’ preset Value, range: 0~999999
⑥
Counter Coil Number (C01~C1F total: 31 counters)
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