302
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.8 FNC 37 – WSFL / Word Shift Left
11.8 FNC 37 – WSFL / Word Shift Left
Outline
This instruction shifts the word data information leftward by the specified number of words.
1. Instruction format
2. Set data
*1. Do not set a negative value to the number of words to be shifted leftward.
3. Applicable devices
S: This function is supported only in FX3U/FX3UC PLCs.
Explanation of function and operation
1. 16-bit operation (WSFL and WSFLP)
For "n1" word devices starting from , "n2" words are shifted leftward ([1] and [2] shown below).
After shift, "n2" words starting from are shifted to "n2" words starting from ([3] shown below).
Operand Type Description Data Type
Head device number to be stored to the shift data after leftward shift 16-bit binary
Head word device number storing data to be shifted leftward 16-bit binary
n1 Word data length of the shift data n2 ≤ n1 ≤ 512 16-bit binary
n2
Number of words to be shifted leftward n2 ≤ n1 ≤ 512
*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
33333333 S 3
3333333 S 3
n1 33
n2 33 33
16-bit Instruction
9 steps
Mnemonic Operation Condition
Continuous
Operation
Pulse (Single)
Operation
WSFL
WSFLP
−
−
Mnemonic Operation Condition
32-bit Instruction
P
FNC 37
WSFL
S
D
S
D
D
S
D
Command
input
FNC 37
WSFLP
n1 n2D
S
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