![Mitsubishi Electric FX3G SERIES Скачать руководство пользователя страница 479](http://html.mh-extra.com/html/mitsubishi-electric/fx3g-series/fx3g-series_programming-manual_238902479.webp)
477
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.9 FNC 88 – PID / PID Control Loop
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
16.9
FNC 88 – PID / PID Control Loop
Outline
This instruction executes PID control which changes the output value according to the input variation.
→
For details, refer to the Analog Control Edition.
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 (PID)
When the target value
, measured value
, and parameters
to
+6 are set and a program is
executed, the operation result (MV) is stored to the output value
at every sampling time
.
Operand type
Description
Data type
Data register number storing the target value (SV)
16-bit binary
Data register number storing the measured value (PV)
16-bit binary
Data register number storing a parameter
16-bit binary
Data register number storing the output value (MV)
16-bit binary
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
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
S
3 3
3 3
S
FNC 88
PID
−
Mnemonic
Operation Condition
16-bit Instruction
9 steps PID
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
S
1
S
1
S
1
S
2
S
3
S
1
D
S
1
S
1
S
1
S
2
S
2
S
3
S
1
D
S
1
S
2
S
3
S
3
D
S
3
Command
input
FNC 88
PID
S
3
S
2
S
1
D
Target value (SV)
Measured value (PV)
Parameter
Output value (MV)
Содержание FX3G SERIES
Страница 1: ...FX3G FX3U FX3UC SERIES PROGRAMMABLE CONTROLLERS PROGRAMMING MANUAL Basic Applied Instructions Edition ...
Страница 2: ......
Страница 947: ......