Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G ユーザーズマニュアル
665
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
29 Data Table Operation – FNC250 to FNC269
29.2 FNC257 – BAND / Dead Band Control
21
FN
C
160
-F
-F
N
C
16
9
R
eal
T
T
im
e C
lock
C
ont
ro
ro
l
22
FN
C
170-
FN
FN
C
179
E
xte
rnal D
evice
23
FN
C
C
180
A
lter
nate
In
st
ru
ct
ions
24
FN
C
181-
FN
FN
C
18
9
O
ther
s
s
25
FN
C
190-
FN
FN
C
199
B
lock D
ata
O
per
ation
ation
26
FN
C2
00
-F
NC
20
20
9
C
ha
racter
S
tring
Co
ntro
ntro
l
27
FN
C
210-
FN
FN
C
21
9
Da
ta
O
per
ati
ati
on 3
28
FN
C
220-
FN
FN
C
249
Da
ta
C
om
par
ison
29
FN
C
25
0-F
N
C
269
D
ata T
abl
e
abl
e
O
per
at
at
ion
30
FN
C
270-
FN
FN
C
274
Ex-
D
D
ev
ice
Inv
ert
ert
er
Com
m
s
2. 32-bit operation (DBAND and DBANDP)
Depending on how the input value (32-bit binary value) specified by [
+1,
] compares to the dead band
range between [
+1,
] and [
+1,
], the output value [
+1,
] is controlled.
The output value is controlled as shown below:
Caution
• When the output value overflows, it is handled as follows:
- In the 16-bit operation
The output value is a 16-bit binary value with sign. Accordingly, if the operation result is outside the range from
-32768 to +32767, it is handled as follows:
-32768 to +32767, it is handled as follows:
- In the 32-bit operation
The output value is a 32-bit binary value with sign. Accordingly, if the operation result is outside the range from
-2,147,483,648 to +2,147,483,647, it is handled as follows:
-2,147,483,648 to +2,147,483,647, it is handled as follows:
Error
An operation error is caused when the instruction is executed in the setting status shown below; The error flag M8067
turns ON, and the error code (K6706) is stored in D8067.
turns ON, and the error code (K6706) is stored in D8067.
Relationship
16-bit operation
>
32-bit operation
[
+1,
]
> [
+1,
]
S
3
S
3
S
1
S
1
S
2
S
2
D
D
FNC257
DBAND
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
+1,
[
]
[
]
S
1
S
2
S
3
D
Command
input
In the case of “Lower limit value > Input value” ...............Input value
− Lower limit value → Output value
In the case of “Upper limit value < Input value” ..............Input value
− Upper limit value → Output value
In the case of “Lower limit value
≤ Input value ≤ Upper limit value” ................................ 0 → Output value
+1,
D
D
+1,
S
3
S
3
Output value
Input
value
value
Output
value
Input value
S
1
S
1
S
3
S
3
S
2
S
2
S
3
S
3
S
3
S
3
S
1
S
1
S
2
S
2
S
3
S
3
S
3
S
3
S
1
S
1
S
2
S
2
D
D
D
D
D
D
Output
Output
Lower limit value of
dead band
dead band
Output value = 0
Upper limit value of
dead band [
dead band [
]
+1,
S
2
S
2
[
]
+1,
S
1
S
1
Lower limit value of dead band = 10
Input value = -32768
Output value = -32768-10
= 8000H-AH
= 7FF6H
= 32758
= 8000H-AH
= 7FF6H
= 32758
S
1
S
3
Lower limit value of dead band [ +1, ] = 1000
Input value [ +1, ] = -2,147,483,648
Output value = -2,147,483,648-1000
= 80000000H-000003E8H
= 7FFFFC18H
= 2,147,482,648
= 80000000H-000003E8H
= 7FFFFC18H
= 2,147,482,648
S
1
S
3
S
1
S
3
S
1
S
2
S
1
S
1
S
2
S
2