Mitsubishi Electronics FX3G User Manual

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

A Programming Tool Applicability and Version Upgrade History

*1.

Circuit blocks cannot be edited to insert a label as shown below when written during RUN.

Program memory which can be written in 
RUN mode

Built-in RAM and optional memory cassette (whose write protect switch is set to OFF)

Number of 
program steps 
which can be 
written for 
circuit change 
in RUN mode

•

GX  Works2 
Ver. 1.08J or later

•

GX  Developer 
Ver. 8.72A or later

•

For  FX

3S

/FX

3G

/FX

3GC

 PLCs 

256 steps or less after edit (addition/deletion) (including NOP immediately after circuit blocks
except final circuit

•

GX  Works2 
Ver. 1.08J or later

•

GX  Developer 
Ver. 8.24A or later

•

For  FX

3U

/FX

3UC

 PLCs Ver. 2.20 or later

256 steps or less after edit (addition/deletion) (including NOP immediately after circuit blocks
except final circuit)

•

For  FX

3UC

 PLC earlier than Ver. 2.20

127 steps or less after edit (addition/deletion) (including NOP immediately after circuit blocks
except final circuit)

•

GX  Developer 
Ver. 8.22Y and 
earlier

•

FX-PCS/WIN(-E)

127 steps or less after edit (addition/deletion) (including NOP immediately after circuit blocks except 
final circuit)

Circuit blocks which cannot be written 
during RUN

Circuit blocks

*1

 in which labels P and I are added, deleted, or changed in edited circuits

Circuit blocks in which 1-ms timers (T246 to T249 and T256 to T511) are added in edited circuits
Circuit blocks in which the following instructions are included in edited circuits
•

Instruction to output high-speed counters C235 to C255 (OUT instruction)

•

SORT2 (FNC149), TBL (FNC152), RBFM (FNC278) and/or WBFM (FNC279) instructions

I001

FNC 04

EI

FNC 06

FEND

Pointer for

interrupt

Label I is inserted by editing the circuit block

FNC 03

IRET

END

Step

0

Added, deleted, or changed

Added, deleted, or changed