I185 GB 06 15
LRX D01
54
Set value
20
Current value
0
0
1
1
––
––
49999
50000
50000
50000
0
0
Input pulse
Reset input
ON
OFF
ON
Counter coil
OFF
ON
OFF
HIGH SPEED COUNTERS (DC VERSION ONLY)
The DC powered version LRD includes 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. They are often used for counting
something moving very fast (>40Hz) or used as a speed reference on a machine. The high speed counters are configured using the same
software Edit Contact/Coil dialog box, except selecting Counter Mode 7 or Mode 8.
HIGH SPEED COUNTER MODE 7 (DC VERSION 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 preceding rung is inactive or the Reset Input is active. 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.
2
1
4
5
3
6
Symbol
Description
1
Counting Mode (7) high speed counting
2
High speed counting input terminal: I01 or I02 only
3
Use (I01~g1F) to Reset the counting value
ON: the counter reset to 0
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)
Mode = 7