Справочник Пользователя для Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G
293
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.2 FNC 31 – ROL / Rotation Left
11
FN
C
C
30
-FN
C
C
39
R
otati
on and
on and
Shi
ft
ft
12
FNC4
0-F
0-F
NC4
9
D
ata O
per
ati
per
ati
on
13
FN
C
C
50-FN
C
59
H
igh S
pe
ed
P
rocessing
14
FM
C
C
60-FN
C
69
H
andy
In
st
ru
ct
ion
15
FNC7
0-F
0-F
NC7
9
Ex
ter
nal FX
I/O
D
evice
16
FN
C
C
80-FN
C
89
Ext
ernal
FX
ernal
FX
De
vic
vic
e
17
FN
C
100-
FN
FN
C
10
9
Da
ta
Transf
er 2
er 2
18
FN
C
110-
FN
FN
C
139
Floati
ng Poi
nt
19
FN
C
14
0-F
N
C
149
Da
ta
O
per
at
at
ion 2
20
FN
C
150-
FN
FN
C
159
Posit
ioning
C
ont
ro
ro
l
11.2
FNC 31 – ROL / Rotation Left
Outline
This instruction shifts and rotates the bit information leftward by the specified number of bits without the carry flag.
1. Instruction format
2. Set data
*1.
Do not set a negative value to the number of bits to be rotated.
3. Applicable devices
S1: In 16-bit operations, K4Y{{{, K4M{{{ and K4S{{{ are valid.
In 32-bit operations, K8Y{{{, K8M{{{ and K8S{{{ are valid.
S2: This function is supported only in FX
3U
/FX
3UC
PLCs.
Explanation of function and operation
1. 16-bit operation (ROL and ROLP)
"n" bits out of 16 bits of
are rotated leftward.
• The final bit is stored in the carry flag (M8022).
• In a device with digit specification, K4 (16-bit instruction) is valid.
• 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 leftward
16- or 32-bit binary
n
Number of bits to be rotated
[n
[n
≤ 16 (16-bit instruction), n ≤ 32 (32-bit instruction)]
*1
16- or 32-bit binary
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
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
1
S
1
S
1
3 3 3 3
S
2
3 3
3
n
3 3
3 3
16-bit Instruction
5 steps
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
ROL
ROLP
DROL
DROLP
Mnemonic
Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
P
FNC 31
ROL
D
D
D
D
Command
input
FNC 31
ROLP
ROLP
n
D
High order
1 1 1
1
1 1 1 1 0 0 0 0 0 0 0 0
1 1 1 1 0 0 0 0 0 0 0 0 1 1 1
1
Low order
High order
Low order
Leftward
rotation
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Before shift
b15 to b12
Before shift
b11 to b0
After the
instruction
is executed
once
b15b14b13b12b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
1
Carry flag
M8022
Carry flag
M8022
The contents of
b12 are stored.
"n" bits (in the case of K4)
b12 (16
−n) to
b15 are moved.
"n" bits
The status of
the bit "16
−n" is
copied.
Before
execution
After
execution