Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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7 APPLICATION INSTRUCTIONS
7.4 Structure Creation Instructions
563
7
Returning from the subroutine program called
RET
This instruction indicates the end of a subroutine program.
■
Execution condition
Processing details
• This instruction indicates the end of a subroutine program.
• When the instruction is executed, the program returns to the next step where the CALL(P), FCALL(P), ECALL(P),
EFCALL(P), or XCALL instruction that called the subroutine program is executed.
Operation error
Ladder ST
Not supported
FBD/LD
Not supported
Instruction Execution condition
RET Every scan
A: Main routine program
B: Subroutine program
Error code
(SD0) Description
3381H After execution of the CALL(P), FCALL(P), ECALL(P), EFCALL(P), or XCALL instruction, the END, FEND, GOEND, or STOP instruction
is executed before the RET instruction.
3382H The RET instruction is executed before the CALL(P), FCALL(P), ECALL(P), EFCALL(P), or XCALL instruction.
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
CALL (P)
END
(P)
RET
A B