IDEC MICROSmart FC6A-C24R1CE Ladder Programming Manual

19: PID C ONTROL I NSTRUCTION
19-46 FC6A S ERIES MICROS MART L ADDER P ROGRAMMING M ANUAL FC9Y-B1726
Ladder program
Note:
The analog status for the analog I/O cartridge is as follows.
• Analog input status error
0: Operating normally
1: Converting data
2: Initializing
5, 6: Wiring error
8 to 11: Analog I/O cartridge error
For details, see Chapter 10 "Analog I/O Cartridge" in the "FC6A Series MICROSmart User’s Manual".
Device Address Comment Device Address Comment
D0000 Process variable (after conversion) M0000 Control action
D0002 Operating status M0003 Alarm 1 output
D0007 Set point M0005 Control output
D8172 Analog Status to the Analog I/O Cartridge M0020 Analog input status error
I0000 PID control enable input M0021 PIDA error
Q0000 Heater output M8120 Initialize Pulse
Q0001 Alarm lamp
1. The PIDA instruction operates when I0 is ON.
2. When M0003 (Alarm 1 output (process high alarm)) is OFF and M0020 is OFF (the analog input status error for the
analog I/O cartridge is 0 to 2), Q0 (heater output) turns ON/OFF according to the manipulated variable and control period
calculated by PID control. The heater output turns OFF when an error occurs.
3. When the analog input status error for the analog I/O cartridge is 5, 6, or 8 to 11, M0020 turns ON.
4. When M0003 (Alarm 1 output (process high alarm)) is ON or M0020 is ON (when the analog input status error for the
analog I/O cartridge is 5, 6, or 8 to 11), Q1 (alarm lamp) turns ON.
5. The operating status of the PIDA instruction is judged, and when an error occurs, M0021 turns ON and Q1 (alarm lamp)
turns ON.
Alarm lamp
R
Q0001
Heater output
Q0000
Alarm lamp
S
Q0001
Alarm lamp
S
Q0001
I0000
PID control
enable input
PIDA S1
D0000
Process variable
(after conversion)
S2
M8120
S4
D0007
S3
M0000
Initialize Pulse Control action Set point
Alarm 1 output
M0003
I0000
PID control
enable input
CMP>=(W) S1 -
D8172
S2 -
5
REPD1 -
M0020
Analog Status to
the Analog I/O Cartridge
Analog input
status error
Analog input
status error
M0020
PIDA error
M0021
Control output
M0005
Alarm 1 output
M0003
I0000
PID control
enable input
ICMP>=(W) S1
109
S2
D0002
D1
M0021
S3
103
Operating status PIDA error
Analog input
status error
M0020
PIDA error
M0021
1.
2.
3.
4.
5.

IDEC MICROSmart FC6A-C24R1CE Specifications

General

Brand	IDEC
Model	MICROSmart FC6A-C24R1CE
Category	Computer Hardware
Language	English