273
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.3 FNC 32 – RCR / Rotation Right with Carry
11
FN
C30-
FN
C39
R
o
ta
tion and
Sh
ift
12
FNC
4
0
-FNC49
D
a
ta
Op
e
ra
tio
n
13
FNC5
0
-FNC5
9
H
igh Speed
Pr
ocessi
ng
14
FM
C6
0
-F
NC6
9
H
and
y
In
st
ru
cti
o
n
15
FNC7
0
-FNC7
9
Ex
te
rn
a
l F
X
I
/O
D
evi
ce
16
FNC8
0
-FNC8
9
Ext
e
rnal
FX
D
evi
ce
17
F
N
C1
00
-F
NC
10
9
Da
ta
Tr
ansf
e
r 2
18
FN
C
110-FN
C
13
9
Fl
oat
ing P
o
in
t
19
FN
C
140-FN
C
149
Da
ta
O
per
at
io
n
2
20
FN
C
15
0-F
N
C
159
P
o
si
tioni
ng
C
ont
ro
l
11.3
FNC 32 – RCR / Rotation Right with Carry
Outline
This instruction shifts and rotates the bit information rightward by the specified number of bits together with
the carry flag.
1. Instruction format
2. Set data
3. Applicable devices
S
: In 16-bit operations, K4Y
{{{
, K4M
{{{
and K4S
{{{
are valid.
In 32-bit operations, K8Y
{{{
, K8M
{{{
and K8S
{{{
are valid.
Explanation of function and operation
1. 16-bit operation (RCR and RCRP)
"n" bits out of 16 bits of
and 1 bit (carry flag M8022) are rotated rightward.
The carry flag is intervened in the rotation loop. If M8022 has been set to ON or OFF before the rotation
instruction, the carry flag is transferred to the destination.
Operand Type
Description
Data Type
Word device number storing data to be rotated rightward
16- or 32-bit binary
n
Number of bits to be rotated
[n
≤
16 (16-bit instruction), n
≤
32 (32-bit instruction)]
16- or 32-bit binary
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D
.b KnX KnY KnM KnS
T
C
D
R U
\G
V
Z Modify K
H
E
"
"
P
S
S
S
3 3 3 3
3
3 3
3
n
3 3
3 3
P
FNC 32
RCR
D
16-bit Instruction
5 steps
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
RCR
RCRP
DRCR
DRCRP
Mnemonic
Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
D
D
D
Command
input
FNC 32
RCRP
n
D
0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0
0
High order
Low order
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Before
shift
b2 to b0
Before shift b15 to b4
High order
1 1 1 1 1 1 1 1 0 0 0 0
0
0 0 0
Low order
Rightward
rotation
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
When M8022 is ON
b2 (n
−
2) to b0 and the head bit
indicating the carry flag ON/OFF
status are moved.
"n" bits (in the case of K4)
b3 (n
−
1)
to b0 are
moved.
"n" bits
1
Carry flag
M8022
b3 (n
−
1)
Before shift
Carry flag M8022
Before shift b3
Carry flag
M8022
The status of the final bit b3
(bit "n
−
1") is stored.
After the
instruction
is
executed
once
Before
execution
After
execution
