Mitsubishi MELSEC FX3U Series Handbook page 40

Precautions
When inline ST is used with the ladder program, instructions and devices can be replaced like ST programs. However,
readout of the program may fail depending on the following conditions.
• If a syntax error exists
• If the program exceeds 2048 characters
If there is an instruction that is not supported by the MELSEC iQ-F Series in the program created using GX Works2, the
instruction will be changed to the instruction using SM4095/SD4095.
Instruction Replacement List of Structured Ladder to FBD/LD
■Replaced instructions
The following instructions will be replaced to GX Works3 compatible instructions when converting the project.
FX3 Series
OUT_T
SQRP
DSQR
DSQRP
FLT
FLTP
DFLT
DFLTP
SER
SERP
DSER
DSERP
RAMP
SORT
HEX
HEXP
INT
INTP
DINT
DINTP
SORT2
DSORT2
HOUR
DHOUR
BK+
BK+P
DBK+
DBK+P
BK-
BK-P
DBK-
DBK-P
BKCMP=
BKCMP=P
DBKCMP=
DBKCMP=P
4 Conversion of the Projects
38
4.2 Precautions when Converting the Projects
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MELSEC iQ-F
OUT_T, OUTH, OUTHS
• When the timer is 1 ms, it will be
replaced to the OUTHS instruction.
• When the timer is 10 ms, it will be
replaced to the OUTH instruction.
• When the timer is 100 ms, it will be
replaced to the OUT_T instruction.
SQRTP
DSQRT
DSQRTP
INT2FLT
INT2FLTP
DINT2FLT
DINT2FLTP
SERMM
SERMMP
DSERMM
DSERMMP
RAMPF
SORTTBL
HEXA
HEXAP
FLT2INT
FLT2INTP
FLT2DINT
FLT2DINTP
SORTTBL2
DSORTTBL2
HOURM
DHOURM
BKPLUS
BKPLUSP
DBKPLUS
DBKPLUSP
BKMINUS
BKMINUSP
DBKMINUS
DBKMINUSP
BKCMP_EQ
BKCMP_EQP
DBKCMP_EQ
DBKCMP_EQP
Remarks
When a label is used instead of a
timer device, the instructions will not
*1
be replaced.
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