519
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
C30
-FN
C3
9
R
ota
tion and
Shi
ft
12
FN
C40-FN
C49
D
ata O
perati
on
13
FNC
50-FNC
59
High-Speed
Proc
essing
14
FM
C60-FN
C69
H
andy
In
struction
15
FN
C70-FN
C79
E
xternal
F
X
I/O
De
vice
16
FNC
80-FNC
89
External
FX
Dev
ice
17
FNC1
00-
FNC10
9
Dat
a
Transfer 2
18
FNC1
10-
FNC139
Fl
oa
ting Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
Operation 2
20
FNC1
50-
FNC159
Pos
itioning
Control
Related devices
→
For the methods of zero, borrow and carry flags, refer to Subsection 6.5.2.
Caution
1. Caution in the operation
• Values after the decimal point are rounded.
Device
Name
Description
M8020
Zero flag
Turns ON when the operation result is 0
M8021
Borrow flag
Turns ON when the conversion result is cut in the decimal part.
M8022
Carry flag
Turns ON when the operation result is outside the range from
−
32768 to 32767
(in 16-bit operation) or from
−
2,147,483,648 to 2,147,483,647 (in 32-bit operation) and overflow
occurs. (The operation result is not reflected.)
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