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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
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
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High-Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
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
*1. Do not set a negative value to the number of bits to be rotated.
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)]
*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
Real
Number
Charac-
ter String
Pointer
XYMTCSD.b KnX KnY KnM KnS T C D R U\G V Z Modify K H E ""P
SSS
n
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
nD
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