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Program With State Relays In Branches And Recombination - Mitsubishi Electric FX3G SERIES Programming Manual

Programmable controllers
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FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
35.2.6

Program with state relays in branches and recombination

1. Example of selective branch
Do not use MPS, MRD, MPP, ANB and ORB instructions in a transfer processing program with branches and
recombination.
Even in a load driving circuit, MPS instructions cannot be used immediately after STL instructions.
In the same way as programs for general state relays, program the drive processing first, and then program the
transfer processing.
Continuously program all transfer processing.
<SFC program>
20
X000
1
21
<Step ladder>
STL
Y000
X000
SET
X001
SET
X002
SET
Y000
X001
2
TRAN
TRAN
31
S20
Drive
processing
S21
Transfer
S31
processing
S41
X002
3
TRAN
41
<List program>
STL
S20
OUT
Y000
LD
X000
SET
S21
LD
X001
SET
S31
LD
X002
SET
S41
35 SFC Program and Step Ladder
35.2 Step Ladder
791
31
32
33
34
35
36
37
38
A
B

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