Keyence Visual KV Series Manual de usuario Pagina 146

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2.4 Instruction Details
3-122
2
Chapter 2 Instructions
Example
Coding
Description
When input relay 0000 turns ON, the subroutine specified by SBN00 and RET is
executed. When the subroutine ends, instructions following CALL are executed.
When the input relay is ON, the CALL instruction executes the subroutine speci-
fied by the operand.
•A subroutine program must be defined between the SBN and RET instructions.
•A subroutine must be defined between END and ENDH instructions.
Once a CALL instruction has been encountered, program execution transfers to
the subroutine specified by the SBN and RET instructions. Once a RET instruc-
tion has been encountered, program execution returns to the instruction immedi-
ately following the CALL instruction.
Operand
Key operations
CALL: Subroutine Call
SBN: Subroutine Entry
RET: Subroutine Return
Executes subroutine specified by operand.
Represents beginning of subroutine speci-
fied by operand.
Represents end of subroutine.
RES
0
RES
0
AND
8
ORL
3
ORL
3
ORL
3
FUN
FUN
FUN
RET
SBN
nn
CALL
nn
Line No. Instruction Operand
0000 : :
:: :
:LD 0000
: CALL 00
:: :
: END :
: SBN 00
:: :
: RET :
: ENDH :
0000 00
CALL
END
SBN
00
RET
ENDH
RES
0
AND
8
ORL
3
ORL
3
ORL
3
ORL
3
FUN
FUN
FUN
Operand
ENT
R-SRCH
ENT
R-SRCH
ENT
R-SRCH
ENT
R-SRCH
:
:
:
CALL / SBN / RET
CALL 00 to 99
SBN 00 to 99
RET
KVNKA Chap 02_4bP.p65 08.3.11, 0:00 PM122
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