KEYENCE Visual KV Series User Manual
Page 193
2.4 Instruction Details
1
2
3-169
Chapter 2 Instructions
Example
Coding
Operands
#01 to #16
Key operation
Arithmetic flag
2009
Turns ON when "1" enters 2009 after an RRA/RLA operation. Turns
OFF at other times.
2010
Turns ON when the internal register is "0" after an RRA/RLA operation.
Turns OFF at other times.
2011, 2012 No change
Description
•
Operation when using the RRA instruction
When input relay 0000 is ON, the contents of DM0000 are transferred to the internal
register. The contents of the internal register and carry (2009) are rotated clockwise
by the operand value.
In the above example, the contents are rotated clockwise every scan time while
input relay 0000 is ON.
RRA: Rotate Right A
@RRA: Rotate Right A
RLA: Rotate Left A
@RLA: Rotate Left A
Rotates contents of internal register and
carry (2009) clockwise by operand value.
Rotates contents of internal register and
carry (2009) counterclockwise by operand
value.
@
#,$
FUN
FUN
@
#,$
FUN
FUN
L D
7
ANB
5
ORL
3
ORL
3
L D
7
ANB
5
ORL
3
ORL
3
#dd
RRA
#dd
RRA
#dd
RLA
#dd
RLA
0000
DM0000
LDA
#01
RRA
DM0001
STA
0001
DM0010
LDA
#04
RLA
DM0011
STA
Line No.
Instruction
Operand
0000
LD
0000
0001
LDA
DM0000
0002
CON
0003
RRA
#01
0004
CON
0005
STA
DM0001
0006
LD
0001
0007
LDA
DM0010
0008
CON
0009
RLA
#04
0010
CON
0011
STA
DM0011
@
#,$
FUN
FUN
@
#,$
FUN
FUN
L D
7
ANB
5
ORL
3
ORL
3
ENT
R-SRCH
ENT
R-SRCH
Operand
ENT
R-SRCH
ENT
R-SRCH
Operand
:
:
:
:
RRA / @RRA / RLA / @RLA
KVNKA Chap 02_4dP.p65
08.3.11, 0:03 PM
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