Filter
Top Products
10 Applied Instructions (Rotation and Shift Operation)
10.9 SFWR / Shift Write [FIFO/FILO Control]
219
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
1
Outline
2
Instruction List
3
Configuration of
Instruction
4
How to Read
Explanation of
Instructions
5
Basic Instruction
6
Step Ladder
Instructions
7
Applied Instructions
(Program Flow)
8
Applied Instructions
(Move and
Compare)
9
Applied Instructions
(Arithmetic and
Logical Operation)
10
Applied Instructions
(Rotation and
Shift Operation)
10.9 SFWR / Shift Write [FIFO/FILO Control]
Outline
This instruction writes data for first-in first-out (FIFO) and first-in last-out (FILO) control.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
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
SFWR 16 bits Continuous SFWR(EN,s,n,d);
SFWRP 16 bits Pulse SFWRP(EN,s,n,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Word device storing data to be put in first ANY16
Number of store points (for pointer, value is added by "+1".)
2 ≤ n ≤ 512
ANY16
Output
variable
ENO Execution state Bit
Head word device storing and shifting data. ANY16
Operand
type
Bit Devices Word Devices Others
System User Digit Specification
System
User
Special
Unit
Index
Constant
Real
Number
Character
String
Pointer
XYMTCS
D
.b
KnX KnY KnM KnS T C D R
U\G
VZModifier K H E
"
"
P
zzzzzzz
S1 S2
zz z z z
zz
zzzzzz
S1 S2
z
SFWR
EN
s
n
ENO
d
SFWRP
EN
s
n
ENO
d