Mitsubishi Electric MELSEC FX3U Programming Manual page 828

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
2. Example of fountain control
1) Cyclic operation (X001 = OFF, X002 = OFF)
When the start button X000 is pressed, the outputs turn ON in the order "Y000 (wait indication) → Y001
(center lamp) → Y002 (center fountain) → Y003 (loop line lamp) → Y007 (loop line fountain) → Y000
(wait indication)", and then the outputs return to the wait status.
Each output is switched in turn every 2 seconds by a timer.
2) Continuous operation (X001 = ON)
Y001 to Y007 turn ON in turn repeatedly.
3) Stepping operation (X002 = ON)
Every time the start button is pressed, each output turns ON in turn.
Ladder
block
826
Enable
M8000
STL
M8047
monitoring
RUN monitor
STL
X002 X000
M8040 transfer
disable
Start
Stepping
M8002
Initial state
SET S3
relay
Initial pulse
SFC
3
block
Start button
X000
0
20
T1
1
21
T2
2
22
T3
3
27
T7 X001
4
20
Continuous RET
35 SFC Program and Step Ladder
35.1 SFC Program
Wait
Y000
indication
TRAN
Y001 Center lamp
T1
K20
TRAN
Center
Y002
fountain
T2
K20
TRAN
Loop line
Y003
lamp
T3
K20
TRAN
Loop line
Y007
fountain
K2
T7
0
T7 X001
TRAN 5
3
END Cyclic/stepping
TRAN