295
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.5 FNC 34 – SFTR / Bit Shift Right
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
11.5 FNC 34 – SFTR / Bit Shift Right
Outline
This instruction shifts bit devices of the specified bit length rightward by the specified number of bits.
After shift, the bit device is transferred by "n2" bits from the most significant bit.
1. Instruction format
2. Set data
*1. Do not set a negative value to the number of bits to be shifted rightward.
3. Applicable devices
S:"D.b" is available only in FX3U and FX3UC PLCs. However, index modifiers (V and Z) are not available.
Operand Type Description Data Type
Head bit device number to be stored to the shift data after rightward shift Bit
Head bit device number to be shifted rightward Bit
n1 Bit length of the shift data n2 ≤ n1 ≤ 1024 16-bit binary
n2
Number of bits to be shifted rightward n2 ≤ n1 ≤ 1024
*1
16-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 VZModifyKH E ""P
333 3 S 3
33 3 3
n1 33
n2 33 33
S
P
FNC 34
SFTR
16-bit Instruction
9 steps
Mnemonic Operation Condition
Continuous
Operation
Pulse (Single)
Operation
SFTR
SFTRP
−
−
Mnemonic Operation Condition
32-bit Instruction
S
D
S
D
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