Mitsubishi MELSEC FX3U Series User Manual

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4 Conversion of the Projects
4.2 Precautions when Converting the Projects
4.2 Precautions when Converting the Projects
• When converting projects of the FX3 Series using GX Works3, be careful because the program (instructions and devices)
may be changed.
• When converting projects, the number of steps may increase and writing to the FX5 CPU module may be impossible.
Check the number of steps after replacement.
• Characters used for the label name in GX Works2 may correspond to reserved words or illegal characters in GX Works3. In
that case, change the label name.
Instruction Replacement List
Instruction Replacement List of Ladder Programs
■Replaced instructions
The following instructions will be replaced to GX Works3 compatible instructions when converting the project.
FX3 Series → MELSEC iQ-F Remarks
OUT T → OUT T/ST, OUTH T/ST, OUTHS T/ST
• When the timer is 1 ms, it will be
replaced to the OUTHS T/ST
instruction.
• When the timer is 10 ms, it will be
replaced to the OUTH T/ST
instruction.
• When the timer is 100 ms, it will be
replaced to the OUT T/ST
instruction.
When a label is used instead of a
timer device, the instructions will not
be replaced.
*1
INT → FLT2INT 
INTP → FLT2INTP 
DINT → FLT2DINT 
DINTP → FLT2DINTP 
RET → RETSTL 
FLT → INT2FLT 
FLTP → INT2FLTP 
DFLT → DINT2FLT 
DFLTP → DINT2FLTP 
DTBL → TBL 
SQR → SQRT 
SER → SERMM 
RAMP → RAMPF 
SORT → SORTTBL 
HEX → HEXA 
SORT2 → SORTTBL2 
HOUR → HOURM 
SQRP → SQRTP 
DSQR → DSQRT 
DSQRP → DSQRTP 
SERP → SERMMP 
DSER → DSERMM 
DSERP → DSERMMP 
HEXP → HEXAP 
DSORT2 → DSORTTBL2 
DHOUR
→ DHOURM 

Mitsubishi MELSEC FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC FX3U Series
Category	Controller
Language	English