Mitsubishi MELSEC-Q Series Programming Manual page 34

3 SPECIFICATIONS
(2) Precautions for creating SFC program
(a) The SFC programs that can be created are "scan execution type program" and "stand-
(b) Two SFC programs (one normal SFC program and one program execution
(c) More than one SFC program can be set as a stand-by type program.
(d) The stand-by type SFC program is executed in the following procedure.
1: The Redundant CPU, Universal model QCPU, and LCPU cannot execute the low-speed
2: The program execution management cannot set on the Universal model QCPU and
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by type program".
management SFC program) can be set as a scan execution type program.
• The currently executed scan execution type program is switched to the stand-by type
program.
• The stand-by type program to be executed is switched to the scan execution type
program.
Initial execution
type program
Scan execution
type program
Low speed
execution type
program
The maximum number of program files changes depending
on the CPU module type.
For details, refer to the User's Manual (Function Explanation,
Program Fundamentals) for the CPU module used.
execution type program.
LCPU.
More than one program can be set.
(SFC program cannot be set.)
More than one program can be set.
(Two SFC programs, normal and program
execution management, can be set.)
Stand-by type
program
More than one program can be set.
(More than one SFC program can
be set for normal programs.)
More than one
program can be
Fixed scan
set.
execution type
(SFC program
program
cannot be set.)
2
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