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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
6 What to Understand before Programming
6.4 Mutual Relationship Among Program Flow Control Instructions
1
Introduction
2
Overview
3
Instruction
List
4
Devices
in Detail
5
Specified the
Device &
Constant
6
Before
Programming
7
Basic
Instruction
8
FNC00-FNC09
Program Flow
9
FNC10-FNC19
Move & Compare
10
FNC20-FNC29
Arith. & Logic
Operation
P-SRET I-IRET
FEND-END
*1
*3
*3
*3
*3
*3
*3
Remarks
*1
*2
FOR FOR NEXT NEXT
The operation indicated by continuous lines is
discribed.
*3
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.
The first FEND or END is valid, but the intended
processes will not occur. But this is not an
error.
3
:This combination can be used without any problem.
×
:This combination is not allowed; Operation error will be occurs.
U
:This combination is allowed, but is better not to be used because the operation will be complicated.
The DI skip status occurs, but this is not an
error.
3
33
33 3
33