KEYENCE Visual KV Series - Manual (Page 81)

2.4 Instruction Details
1
2
3-57 Chapter 2 Instructions
Example
Coding
When input relay 0000 turns ON, output relay 0500 turns ON.
When input relay 0001 turns OFF, output relay 0501 turns ON.
Description
• LD and LDB instructions are used to connect a contact to the bus.
• LD and LDB instructions are also used to separate program blocks when ANL or
ORL instruction is used.
Operands
Key operation
Example: LD C014
LD: Load
LDB: Load Bar
Connects N.O. contact to bus.
Connects N.C. contact to bus.
L D
7
LDB
4
nnnn
nnnn
0000 0500
0001 0501
Line No. Instruction Operand
0000 LD 0000
0001 OUT 0500
0002 LDB 0001
0003 OUT 0501
( )
L D
7
Operand ENT
R-SRCH
ENT
R-SRCH
L D
7
LDB
4
LDB
4
CTR
( C )
SET
1
:
:
LD / LDB
Visual KV KV-300 KV-10/16 KV-24/40/80
0000 to 17915 0000 to 0009 0000 to 2915 0000 to 6915
T000 to T249 0500 to 17915 T000 to T063 T000 to T119
C000 to C249 T000 to T249 C000 to C063 C000 to C119
CTC0 to CTC3 C000 to C249 CTC0 to CTC3 CTC0 to CTC3
CTC0 to CTC3
KVNKA Chap 02_4aP.p65 08.3.11, 11:57 AM 57