Справочник Пользователя для Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G
515
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.17 FNC129 – INT / Floating Point to Integer Conversion
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
18.17 FNC129 – INT / Floating Point to Integer Conversion
Outline
This instruction converts binary floating point data into a binary integer which is a normal data format inside PLCs
(binary floating point
(binary floating point
→ binary integer).
→ For program examples of floating point operations, refer to Section 12.10.
→ For handling of floating point, refer to Subsection 5.1.3.
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 (INT and INTP)
Binary floating point stored in [
+1,
] is converted into a binary integer, and transferred to
.
Instruction for inverse conversion
The inverse conversion is executed by FLT (FNC 49) instruction.
The inverse conversion is executed by FLT (FNC 49) instruction.
→ For FLT (FNC 49) instruction, refer to Section 12.10.
2. 32-bit operation (DINT and DINTP)
Binary floating point stored in [
+1,
] is converted into a binary integer, and transferred to [
+1,
].
Instruction for inverse conversion
The inverse conversion is executed by DFLT (FNC 49) instruction.
The inverse conversion is executed by DFLT (FNC 49) instruction.
→ For FLT (FNC 49) instruction, refer to Section 12.10.
Operand Type
Description
Data Type
Data register number storing binary floating point data to be converted into a binary
integer
integer
Real number (binary)
Data register number storing a converted binary integer
16- or 32-bit 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
P
FNC 129
INT
D
16-bit Instruction
5 steps
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
INT
INTP
DINT
DINTP
Mnemonic
Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
S
D
S
D
S
S
D
Command
input
FNC129
INT
S
D
→
16-bit binary integer
The decimal part is cut.
16-bit binary integer
The decimal part is cut.
+1,
Binary floating
Binary floating
point
S
D
S
S
S
D
D
Command
input
FNC129
DINT
S
D
→ +1,
32-bit binary integer
The decimal part is cut.
32-bit binary integer
The decimal part is cut.
+1,
Binary floating
Binary floating
point
S
D
S
D