Sequence Program - Mitsubishi Electric MELSEC FX Series User Manual

FX -4LC User's Manual
3U
9.2.4

Sequence program

The sequence program for the example program with the FX
unit No.0 to match the actual system configuration to be used.
The FROM/TO instructions are used for read/write of buffer memory.
→ For details on the how to read/write from/to buffer memory, refer to Subsection 9.1.2.
M8002
Initial pulse
M8000
RUN monitor
X000 M15
Temperature
control ready
flag
X000
M100 M14
Initialization
completed
flag
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→ For details on the unit No., refer to Subsection 9.1.1.
→ For details on the system configuration, refer to Subsection 9.2.1.
→ For details on the conditions of operation, refer to Subsection 9.2.2.
→ For details on the device assignments, refer to Subsection 9.2.3.
MOV K1000
MOV K1000
TO K0 K48
TO K0 K88
TO K0 K208
P
TO K0 K214
P
TO K0 K240
P
TO K0 K255
P
TO K0 K57
P
TO K0 K97
P
TO K0 K62
P
TO K0 K102
P
TO K0 K75
P
TO K0 K115
P
TO K0 K79
P
TO K0 K119
P
TO K0 K86
P
TO K0 K126
P
9.2 Example of a Program for PID Control
-4LC as unit No. 0 is shown below. Change
3U
D0
100.0
set value.
D1
D0 K1
Writes set values.
D1 K1
K1 K1
Input type selection:
Type K -100.0 to 400.0
K1 K1
Control mode switch:
K0 K1
0 (initial value)
Initialization command
K2 K1
2
SET M100
RST M100
K3 K1
Operation mode:
3:Monitor+Alarm+Control
(initial value)
K3 K1
K1 K1
Control response parameter:
1:Medium
K1 K1
K1 K1
Normal operation/reverse
operation:
1:Reverse operation (initial value)
K1 K1
K100 K1
Loop breaking alarm dead zone
±
10.0
K100 K1
K0 K1
Transistor output selection:
0 (initial value)
K0 K1
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9 Program Examples
C set to D0 and D1 as a
C
C
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