Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G ユーザーズマニュアル
333
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
12 Data Operation – FNC 40 to FNC 49
12.10 FNC 49 – FLT / Conversion to Floating Point
11
FN
C
C
30
-FN
C
C
39
R
otati
on and
on and
Shi
ft
ft
12
FNC4
0-F
0-F
NC4
9
D
ata O
per
ati
per
ati
on
13
FN
C
C
50-FN
C
59
H
igh S
pe
ed
P
rocessing
14
FM
C
C
60-FN
C
69
H
andy
In
st
ru
ct
ion
15
FNC7
0-F
0-F
NC7
9
Ex
ter
nal FX
I/O
D
evice
16
FN
C
C
80-FN
C
89
Ext
ernal
FX
ernal
FX
De
vic
vic
e
17
FN
C
100-
FN
FN
C
10
9
Da
ta
Transf
er 2
er 2
18
FN
C
110-
FN
FN
C
139
Floati
ng Poi
nt
19
FN
C
14
0-F
N
C
149
Da
ta
O
per
at
at
ion 2
20
FN
C
150-
FN
FN
C
159
Posit
ioning
C
ont
ro
ro
l
12.10 FNC 49 – FLT / Conversion to Floating Point
Outline
This instruction converts a binary integer into a binary floating point (real number).
1. Instruction format
2. Set data
3. Applicable devices
S: This function is supported only in FX
3U
/FX
3UC
PLCs.
Explanation of function and operation
1. 16-bit operation (FLT and FLTP)
The binary integer data of
is converted into binary floating point (real number), and stored to [
+1,
].
2. 32-bit operation (DFLT and DFLTP)
The binary integer data of [
+1,
] is converted into binary floating point (real number), and stored to
[
+1,
].
Related instruction
Caution
1. It is not necessary to convert a constant (K or H) into floating point value.
The value of a K or H specified in each instruction for binary floating point (real number) operation is automatically
converted into binary floating point (real number). It is not necessary to convert such a constant using by FLT
instruction.
(K and H cannot be specified in RAD, DEG, EXP and LOGE instructions.)
converted into binary floating point (real number). It is not necessary to convert such a constant using by FLT
instruction.
(K and H cannot be specified in RAD, DEG, EXP and LOGE instructions.)
Operand type
Description
Data type
Data register number storing binary integer
16- or 32-bit binary
Data register number storing binary floating point (real number)
Real number (binary)
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
stant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modify K H
E
"
"
P
3 3
S
3
3 3
S
3
Instruction
Description
INT(FNC129)
It is inverse of FLT instruction, and converts binary floating point into binary integer.
DFLT
DFLTP
Mnemonic
Operation Condition
P
FNC 49
FLT
D
16-bit Instruction
5 steps FLT
FLTP
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
S
1
S
D
S
1
S
D
D
1
S
D
1
D
D
1
D
Command
input
→ ( + 1, )
FNC 49
FLT
S
D
S
D
Binary
integer
integer
D
Binary floating point
(real number)
(real number)
D
1
S
D
1
S
D
1
D
D
1
D
Command
input
FNC 49
DFLT
S
D
( + 1, )
→ ( +1, )
S
S
D
D
Binary integer
Binary floating point
(real number)
(real number)