Chapter 5 Relay Ladder Logic Programming 87
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High Speed Counters (DC Version Only)
The DC powered version smart relays include two 1 KHz high speed inputs on terminal I01 and I02. These can be
used as general purpose DC inputs or can be wired to a high speed input device (encoder, etc.) when configured for high
speed counting.
High Speed Counter Mode 7 (DC powered versions only)
The Mode 7 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. The
selected Counter Coil (C01-C1F) will turn ON when the
pulse count reaches preset value and remain ON. The
counter will reset when the Reset Input is active. In the
example below shows the relationship among the
numbered block diagram for a Mode 7 Counter, the
ladder diagram view, and the software Edit Contact/Coil
dialog box.
Symbol Description
①
Counting Mode (7) high speed counting
②
High speed counting input terminal: I01 or I02 only
Use (I01~g1F) to Reset the counting value
ON: the counter reset to 0
③
OFF: the counter continues to count
④
Current Count Value, range: 0~999999
⑤
Preset Value, range: 0~999999
⑥
Counter Coil Number (C01~C1F total: 31 counters)
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