Mitsubishi Electric MELSEC iQ-F Series - Page 123

APPX
Appendix 5 Conversion of the SFC Program
121
A
• When a ladder block is contained in an FX3U/FX3UC project, an initial execution type program is automatically added. The
initial execution type program is created to start the SFC block that takes over the content of the ladder block.
*1 The program is executed only once when the CPU module is switched from STOP/PAUSE to RUN.
*2 The program is executed only once per scan after the initial execution type program is executed.
*3 When “LD M8002” is used in the ladder block in an FX3U/FX3UC project, change “LDSM8002” to “LDP SM8003” as shown below after
replacing with GX Works3.
• After replacement with GX Works3, the ladder block will be replaced with an initial step + disabled transition + a jump.
GX Works2 GX Works3 (after reading another format)
GX Works2 GX Works3 (after reading another format)
Ladder blockBlock0
Block1
Block2
SFC block
SFC block
Scan execution type program
*2
Initial execution type program
*1
SFC blockBlock0
Block1
Block2
SFC block
SFC block
SM400
SFC block (Block 0) taking over
the content of the ladder block
*3
Program to start Block 0
SET BL0
SM8002
SET
BL1
SM8003
SET
BL1
LD
S0 S0
>>
S0
TR0
Transition0
Disabled Transition
Jump
Initial step