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561
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
19 Data Operation 2 – FNC140 to FNC149
19.3 FNC142 – BTOW / BYTE to WORD
11
FNC3
0-F
NC3
9
R
otati
on and
Shif
t
12
FNC4
0-F
NC4
9
D
ata
O
per
ati
on
13
FN
C
50-FN
C
59
H
igh Speed
Pr
ocess
ing
14
FM
C
60-
FN
C
69
H
andy
In
st
ru
ct
ion
15
FNC7
0-F
N
C7
9
Ex
ter
nal
FX
I/O
D
evice
16
FN
C
80-FN
C
89
Ext
ernal FX
De
vic
e
17
FN
C
100-
FN
C
109
Da
ta
Transf
er 2
18
FN
C
110-
FN
C
139
Fl
oati
ng Poi
nt
19
FN
C
140
-F
N
C
14
9
Da
ta
O
per
ati
on 2
20
FN
C
150-
FN
C
159
Posit
ioning
C
ontr
ol
Program example
In the program shown below, the low-order byte (8 bits) data stored in D20 to D25 is combined, and stored in
D10 to D12.
31H
D20
D21
The high-order bytes is ignored.
D22
6 bytes
D10
D11
D12
12H
55H
78H
49H
67H
00H
31H
44H
78H
12H
55H
36H
49H
48H
67H
D23
D24
49H
31H
D25
b15
b8 b7
b0
b15
b8 b7
b0
X000
FNC142
BTOWP
D20
D10
K6
END