6F3B0250
150 T1/T1S User’s Manual
7. Instructions

CNT Counter

Expression
Count input C CNT Q Output
Enable input E
A
B
Function
While the enable input is ON, this instruction counts the number of the count input changes from OFF
to ON. The count v alue is stored in the counter register
B
. When the count value reaches the set value
A
, the output and the counter device corresponding to
B
are turned ON. When the enable input comes
OFF,
B
is cleared to 0 and the out put and the counter device are turned OFF.
The available data rang e for operand
A
is 0 to 65535.
Execution condition
Enable
input Operation Output
OFF No operation (
B
is cleared to 0) OFF
ON Count value (
B
) < set value (
A
)OFF
Count value (
B
) ³ set value (
A
)ON
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Set value ÖÖÖÖÖÖÖÖÖÖ
0 - 65535
B
Count value Ö
Example
X001
X002
C010
C.010
Y021
Note
· No transit ional cont act is requir ed for t he
count input. The count input rising edge is
detected by this instr uction.
· For the count input, direct linking t o a
connecting point is not allowed. In this
case, insert a dummy contact (always ON =
S04F, etc.) just bef or e t he input.
Refer t o Not e of Shif t r e gister FUN 074.
· M ultiple counter instructions (CNT) with the
same counter r e
g
ister are not allowed.
3
2
5
4
3
211
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