5-3
5.2 Application Functions
5.2.1: Counter Function (C)
1
4
5
2
3
6
Function
Diagram
Ladder Display
Example Value
Description
a
1
Counter mode (1 – 4)
b
I02
UP/Down counting modes can be set by (I1 – f8).
OFF: Count up (0, 1, 2, 3…)
ON: Count down (…3,2,1,0)
c
I03
Use (I1–f8) to reset counting value
ON: Internal count value is reset and counter output
f
is OFF
OFF: Internal counter value retained
d
00000
Counter value
e
00000
Counter preset value (AS1–AS4,MD1–MD4,T1–T8,C1–C8,V1–V7,constant)
f
C01
Counter output (C1 to C8, there are a total of 8 counters)
Counter Mode 1
Counter value cannot exceed the set value. Counter value will not be retained when power is cut off.
Preset Value
20
Output
Counter Value
0
0 1
1
19 19 20 20
0
2
2
1
1
0
20 0 20 20
Counter Input Pulse
Direction Signal
Reset Signal
OFF
ON
ON
ON
OFF
OFF
ON
ON
OFF
ON
Ladder Display Example
Function Diagram
Each time I01 is activated, the counter value will increase as shown below.