Mitsubishi FX1S Series User Manual

FX Series Programmable Controlers Applied Instructions 5
5-131
Example PID Settings
The partial program shown at below demonstrates which parameters must be set for the
functioning of the FX2N. The first step sets the user values for S
3
+0 to S
3
+6. The PID
instruction will be activated when M4 is On.
From the PID instruction at the bottom of the ladder, S
1
= D200; S
2
= D201; S
3
= D500; and D
or MV = D525.
K500 D500
FNC 12
MOV
P
H0000 D501
FNC 12
MOV
P
K50 D502
FNC 12
MOV
P
K75 D503
FNC 12
MOV
P
K50 D505
FNC 12
MOV
P
K3000 D506
FNC 12
MOV
P
K2000 D504
FNC 12
MOV
P
M8002
K1000 D200
FNC 12
MOV
P
M4
FNC 88
PID
D200 D201 D500 D525
M1
FNC 79
TO
K2 K1 K4 K4
FNC 78
FROM
K2 K5 D201 K4
M8002
D500: Ts = 500 ms
D501: Forward Operation,
Alarms Not Enabled
D502: Input Filter = 50%
D503: K
P
=75%
D504: T
I
=4000ms
D505: K
D
= 50%
D506: T
D
= 1000 ms
D200: Set Point = 1000
D201: PV
nf
(an analog
input value)
Begin the PID instruction
D525: PID Output Value

Mitsubishi FX1S Series Specifications

General

Model	FX1S Series
I/O Points	10 to 30 points
Program Memory	2000 steps
Power Supply	AC
Communication	RS-422
Expansion	No expansion
Programming Language	Ladder Logic
Input Voltage	100-240V AC
Built-in High-Speed Counter	Up to 60 kHz (single-phase)
Weight	Approx. 0.3 kg
Dimensions	90 x 60 x 75 mm