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10 Applied Instructions (Rotation and Shift Operation)
10.9 SFWR / Shift Write [FIFO/FILO Control]
219
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
1
O
utlin
e
e
2
Instruc
tion Li
st
3
Configurati
on of
Instruction
4
Ho
w t
o R
ea
d
Explanati
on of
Ins
truction
truction
s
5
B
asic
Instruction
6
Step Ladder
Instruct
ions
7
Ap
pl
ied Inst
ruct
io
io
ns
(Program Flow)
8
Appl
ied
ied
In
stru
cti
cti
ons
(Mov
e and
C
omp
are)
are)
9
App
lie
lie
d Instr
uction
s
s
(Ari
thm
eti
thm
eti
c and
Lo
gic
al O
per
at
ion)
10
App
lied Inst
lied Inst
ructi
ons
ons
(Rot
ati
ati
on and
Shift O
perati
on)
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".
FX
3U(C)
FX
3G(C)
FX
3S
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(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
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
2
≤ n ≤ 512
ANY16
Output
variable
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
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modifier K
H
E
"
"
P
z
z
z
z z z z
S1
S2
z z
z
z
z
z
z
z
z
z z z z
S1
S2
z
SFWR
EN
s
n
s
n
ENO
d
SFWRP
EN
s
n
s
n
ENO
d