Mitsubishi MELSEC-Q Series Programming Manual page 30

3 SPECIFICATIONS
(2) Precautions for creating SFC program
(a) Only one SFC program can be created.
The created SFC program is a "scan execution type program".
(b) The Basic model QCPU allows creation of a total of two program files: one SFC program
and one sequence program.
(Two sequence programs or two SFC programs cannot be created.)
Scan execution type program
3
(c) The created sequence program and SFC program have the following file names. (The file
names cannot be changed.)
• Sequence program: MAIN.QPG
• SFC program: MAIN-SFC.QPG
(d) The SFC program and sequence program are processed in order of "sequence program"
and "SFC program".
(The processing order of the SFC program and sequence program cannot be changed.)
3 - 2
Sequence
program
(MAIN.QPG)
SFC program
(MAIN-SFC.QPG)
3 - 2