Mitsubishi MELSEC-F FX3U Series User Manual

FX 3U /FX 3UC Series PLC User's Manual - Analog Control Edition
PID Instruction (FNC 88)
G-5
2 How to Use PID Instruction
2.1 Explanation of function and operation
A
Common Items
B
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3U
-4DA-ADP
E
FX
3U
-4AD-PT
-ADP
F
FX
3U
-4AD-TC
-ADP
G
PID Instruction (FNC 88)
2. How to Use PID Instruction
1. Instruction format
2. Set data
3. Target devices
2.1 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 transferred to the output value at every sampling time
specified by
Operand type Description Data type
Data register number storing the target value (SV) Binary 16-bit
Data register number storing the measured value (PV) Binary 16-bit
Data register number storing a parameter Binary 16-bit
Data register number storing the output value (MV) Binary 16-bit
Operand
type
Bit devices Word devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Num-
ber
Char-
acter
String
Poin-
ter
XYMTCSD.b KnX KnY KnM KnS T C D R U\G VZ
Mod-
ify
KH E ""P
 
 

 
32-bit
lnstruction
⎯
Mnemonic Operation Condition
FNC 88
PID
PID
16-bit
lnstruction
9 steps PID
Continuous
Operation
Mnemonic Operation Condition
SS 1
S 2
S 3
D
SS 1
S 2
S 3
D
S 1 S 1 S 2 S 2 S 3 S 3 S 3 S 3
S 3 D
S 3 S 3
Command
input
FNC 88
PID
S 3 S 2 S 1 D
Target
value
(SV)
Measured
value
(PV)
Parameter Output
value
(MV)

Mitsubishi MELSEC-F FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC-F FX3U Series
Category	Controller
Language	English