Справочник Пользователя для Mitsubishi Electronics FXCPU
19 Applied Instructions (Data Operation 2)
19.3 BTOW / BYTE to WORD
503
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
11
Appl
ied
ied
In
stru
cti
cti
ons
(D
ata O
per
at
io
n)
12
Ap
plied
Instru
ctio
ns
Instru
ctio
ns
(High S
peed
Process
ing)
13
App
lied Instr
lied Instr
ucti
ons
(Handy
Instruction)
14
Ap
pl
ied In
struct
struct
ions
(External FX I/O
D
evice)
15
Appl
ied
ied
Instru
cti
cti
ons
(External
Dev
ice
ice
(op
tional
dev
ice)
)
tional
dev
ice)
)
16
App
lie
lie
d Instr
uction
s
s
(E
xter
nal
nal
Devi
ce)
17
Ap
pl
ied Inst
ruct
io
io
ns
(Dat
a T
ransf
er 2)
a T
ransf
er 2)
18
Appl
ied
ied
In
stru
cti
cti
ons
(Float
ing P
oin
oin
t)
19
App
lie
lie
d Instr
uction
s
s
(D
at
a Oper
at
ion 2)
20
App
lied Inst
lied Inst
ructi
ons
ons
(Pos
itioning
Control)
19.3
BTOW / BYTE to WORD
Outline
This instruction couples the lower 8 bits (lower byte) of continuous 16-bit data.
1. Format and operation, execution form
2. Set data
3. Applicable devices
Function and operation explanation
1. 16-bit operation (BTOW/BTOWP)
1) This instruction stores the 16-bit data coupling lower byte (8 bit) of 16-bit data of n points from the device
specified by
, into n/2 devices starting from
as follows.
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
BTOW
16 bits
Continuous
BTOW(EN, s, n, d);
BTOWP
16 bits
Pulse
BTOWP(EN, s, n, d);
Variable
Description
Data type
Input
variable
variable
EN
Execution condition
Bit
Head device for storing the data to be coupled in byte unit.
ANY16
Number of byte data to be coupled (0
≤n)
ANY16
Output
variable
variable
ENO
Execution state
Bit
Head device for storing the coupled result in byte unit.
ANY16
Operand
type
Bit Devices
Word Devices
Others
System user
Digit designation
System
user
Special
unit
Index
Cons
tant
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
z z
z z z z
z
BTOW
EN
s
n
s
n
ENO
d
BTOWP
EN
s
n
ENO
d
BTOWP
EN
s
n
ENO
d
Head device for storing the coupled result in byte unit.
Command
input
input
Head device of data to be coupled
Number of byte data to be coupled
b15
b8 b7
b0
+0
+1
+1
Higher bytes are ignored.
+2
+n-1
n bytes
First byte data
Second byte data
Third byte data
Second byte data
Third byte data
n-th byte data
+0
+1
+1
+n/2
*
Second byte
Fourth byte
n-th byte
First byte
Third bytes
n-1-th byte
b15
b8 b7
b0
* If n is an odd number, refer to 3).
d
s