Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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5 SEQUENCE INSTRUCTIONS
5.6 Termination Instructions
213
5
Ending the sequence program
END
This instruction indicates the end of a program.
■
Execution condition
Processing details
• This instruction indicates the end of a program including a main routine program, subroutine programs, and interrupt
programs.
• When the instruction is executed, the CPU module terminates the running program.
• If END processing is required in the middle of a program, use the FEND instruction.
• If the program is created using the engineering tool (in ladder edit mode), the END instruction is automatically input and
cannot be edited.
• The following figure shows how to use the termination instructions when a main routine program, subroutine program, and
interrupt program exist.
Ladder ST
Not supported
FBD/LD
Not supported
Instruction Execution condition
END Every scan
A: Main routine program
B: Subroutine program
C: Interrupt program
D: Main sequence program area
(1) The FEND instruction is required.
(2) The END instruction is required.
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
END
0
Program
FEND
END
A
C
D
B
(1)
(2)