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27 Applied Instructions (Data Operation 3)
27.5 SFL / Bit Shift Left with Carry
666
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
27.5 SFL / Bit Shift Left with Carry
Outline
This instruction shifts 16 bits stored in a word device leftward by "n" bits.
1. Format and operation, execution form
2. Set data
3. Applicable devices
Function and operation explanation
1. 16-bit operation (SFL/SFLP)
1) 16 bits stored in a word device specified by are shifted leftward by "n" bits.
Specify a value in the range from "0" to "15" as "n".
If "16" or larger value is specified as "n", 16 bits are shifted leftward by the remainder of "(n) divided by
(16)".
For example, when "n" is set to "18", 16 bits are shifted leftward by 2 bits as "2" remains when "18" is
divided by "16".
2) The ON (1) or OFF (0) status of the "n + 1"th bit (bit "n") in the word device specified by is
transferred to the carry flag M8022.
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
SFL 16 bits Continuous SFL(EN,n,d);
SFLP 16 bits Pulse SFLP(EN,n,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Number of times of shift ANY16
Output
variable
EN Execution state Bit
Device storing data to be shifted. ANY16
Operand
type
Bit Devices Word Devices Others
System user Digit specification
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
V Z Modifier K H E
""
P
z z z z zzzz z zz zz
zzzzzzz z zz z
SFL
EN
n
ENO
d
SFLP
EN
n
ENO
d
SFL
EN
n
ENO
d
Device storing data to be shifted.
Command
input
Number of times
of shift