Mitsubishi Electric MELSEC FX3U Programming Manual page 181

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
:This combination can be used without any problem.
× :This combination is not allowed; Operation error will be occurs.
:This combination is allowed, but is better not to be used because the operation will be complicated.
P-SRET
6.4 Mutual Relationship Among Program Flow Control Instructions
I-IRET
FEND-END
*1
*3
*3
*3
*3
*3
*3
6 What to Understand before Programming
Remarks
*1 The DI skip status occurs, but this is not an
error.
*2
FOR FOR NEXT
The operation indicated by continuous lines is
discribed.
*3
The first FEND or END is valid, but the intended
processes will not occur. But this is not an
error.
Instructions having containment relationship can
be combined except some combinations as
follows:
1) MC-MCR cannot be used in FOR-NEXT, STL-RET,
P-SRET and I-RET.
2) STL-RET cannot be used in FOR-NEXT, P-SRET
and I-IRET.
3) MC-MCR, FOR-NEXT, P-SRET and I-IRET cannot
be interrupted by I, IRET, SRET, FEND, END, etc.
NEXT
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