KEYENCE Visual KV Series - Manual (Page 97)

2.4 Instruction Details
1
2
3-73 Chapter 2 Instructions
Details of counter
■ Extended ladder
•
The counter for the KV Series supports the extended ladder method.
• The extended ladder allows you to connect contacts or output coils after the
counter in series, reducing the number of ladder program lines.
In the following example, the counter starts counting when counter input relay 0004
turns ON. When the current counter value reaches "300", output relay 0500 turns
ON.
Coding
➮ "CON instruction" (p. 3-102)
For details of the extended ladder, refer to "1.5 Extended Ladder Diagrams"
(p.3-29).
Operands
Key operation
0002 C002 0500
0004
#00300
C002
Line No. Instruction Operand
0000 LDB 0002
0001 C 002 #00300 0004
0002 CON
0003 AND C002
0004 OUT 0500
0001 2007
0000
#00010
C005
C
CTR
( C )
Operand
(Counter No.)
Operand
(Preset value)
Operand
(Count input)
ENT
R-SRCH
KV counter
Visual KV KV-300 KV-10/16 KV-24/40/80
No.: 000 to 249 No.: 000 to 249 No.: 000 to 063 No.: 000 to 119
Count input: Count input: Count input: Count input:
0000 to 17915 0000 to 0009, 0000 to 2915 0000 to 6915
0500 to 17915
Preset value: Preset value: Preset value: Preset value:
#00001 to #65535 #00000 to #65535 #00000 to #65535 #00000 to #65535
KVNKA Chap 02_4aP.p65 08.3.11, 11:58 AM 73