Mitsubishi Electronics FX3G User Manual
489
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.2 FNC111 – EZCP / Floating Point Zone Compare
11
FN
C30
-FN
C3
C30
-FN
C3
9
R
ota
tion and
Shi
ft
ft
12
FN
C40-FN
C40-FN
C49
D
ata O
perati
perati
on
13
FNC
50-FNC
59
High-Speed
Proc
essing
14
FM
C60-FN
C60-FN
C69
H
andy
In
struction
15
FN
C70-FN
C70-FN
C79
E
xternal
F
X
I/O
De
vice
16
FNC
80-FNC
89
External
FX
Dev
ice
ice
17
FNC1
00-
FNC10
00-
FNC10
9
Dat
a
a
Transfer 2
18
FNC1
10-
FNC139
FNC139
Fl
oati
ng Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
Operation 2
20
FNC1
50-
FNC159
FNC159
Pos
itioning
itioning
Control
Explanation of function and operation
1. 32-bit operation (DEZCP and DEZCPP)
The comparison values [
+1,
], [
+1,
] are compared with the comparison source [
+1,
] as floating point data, and one of the bits among
,
+1, and
+2 turns ON according to the
result (smaller, same or larger).
• When a constant (K or H) is specified as [
+1,
], [
+1,
], or [
+1,
], it is
automatically converted into binary floating point when the instruction is executed.
Cautions
1. Number of occupied devices
Three devices are occupied from
(
,
+1 and
+2).
Make sure that these devices are not used for any other purpose.
2. Comparison values [
+1,
] and [
+1,
]
Make sure that two comparison values have the following relationship:
[
[
+1,
]
≤ [
+1,
]
In the case of "[
+1,
]
> [
+1,
]", the value [
+1,
] is regarded as [
+1,
]
value during comparison.
S
1
S
1
S
2
S
2
S
S
D
D
D
S
1
S
1
S
2
S
2
S
S
Command
input
FNC 111
EDZCP
+1
+2
S
1
S
2
S
D
D
D
D
Even if the command input turns OFF before the DEZCP instruction is fully executed, to +2 will hold their
previous status.
previous status.
D
D
Turns ON in the case of
+1,
S
S
]
+1,
[ S
2
S
2
] ".
" [
Turns ON in the case of
+1,
[ S
S
]
+1,
]
S
1
S
1
+1,
[ S
2
S
2
] ".
" [
Turns ON in the case of
+1,
[ S
S
+1,
]
S
1
S
1
] ".
" [
>
>
D
D
D
D
S
1
S
1
S
2
S
2
S
1
S
1
S
2
S
2
S
1
S
1
S
2
S
2
S
2
S
2
S
1
S
1