269
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.1 FNC 30 – ROR / Rotation Right
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
11.1
FNC 30 – ROR / Rotation Right
Outline
This instruction shifts and rotates the bit information rightward by the specified number of bits without 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 (ROR and RORP)
"n" bits out of 16 bits of
are rotated rightward.
• The final bit is stored in the carry flag (M8022).
• In a device with digit specification, K4 (16-bit instruction) is valid.
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 30
ROR
D
16-bit Instruction
5 steps
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
ROR
RORP
DROR
DRORP
Mnemonic
Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
D
D
D
Command
input
FNC 30
RORP
n
D
0
0 0 0 1 1 1 1 1 1 1 1 0 0 0 0
0
Carry flag
M8022
High order
Low order
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Before shift
b3 to b0
Before shift
b15 to b4
After the
instruction
is executed
once
High order
1 1 1 1 1 1 1 1 0 0 0 0
0
0 0 0
Low order
M8022
"n" bits (in the case of K4)
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Before
execution
After
execution
Rightward
rotation
"n" bits
The status of the bit "n
−
1" is
copied.
Carry flag
"n
−
1" bits
b0 to b3 (n
−
1) are moved.
The contents of
b3 are stored.