Справочник Пользователя для Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G
467
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.6 FNC 85 - VRRD / Volume Read
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
16.6
FNC 85 - VRRD / Volume Read
Outline
This instruction reads the analog value of a variable analog potentiometer board (FX
3G
-8AV-BD) attached to the FX
3G
PLC main unit.
1. Instruction format
2. Set data
3. Applicable devices
Explanation of function and operation
This instruction reads the analog value of a variable analog potentiometer board attached the PLC main unit.
This instruction converts the analog value of the variable analog potentiometer specified in
This instruction converts the analog value of the variable analog potentiometer specified in
into binary 8-bit
data, and transfers the numeric value in the range from 0 to 255 to
.
Program example
1. Example in which the read analog value is used as the set value of an analog timer
The analog value of the variable analog potentiometer No.0 is converted into binary 8-bit data, and the value in the
range from 0 to 255 is transferred to D0.
The value of D0 is used as the set value of a timer.
range from 0 to 255 is transferred to D0.
The value of D0 is used as the set value of a timer.
When a value larger than 255 is required as the set value of a timer, the read value multiplied by a constant by the
FNC22 (MUL) instruction can be set indirectly as the timer constant.
FNC22 (MUL) instruction can be set indirectly as the timer constant.
Operand type
Description
Data type
Volume number [setting range: 0 to 7]
16-bit binary
Device to which the read analog value is transferred
16-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
3
3 3
3
3
3
3 3 3 3
3 3
3
−
−
−
Mnemonic
Operation Condition
16-bit Instruction
5 steps VRRD
VRRDP
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Pulse (Single)
Operation
32-bit Instruction
P
FNC 85
VRRD
VOLUME READ
S
1
S
D
S
1
S
S
2
D
S
1
S
D
FNC 85
VRRD
Command
input
S
D
FNC 85
VRRD
K0
D0
Volume
number
number
Read
destination
X000
X001
T0
D0