Mitsubishi Electric MELSEC-Q Structured Programming Manual page 262

FXCPU Structured Programming Manual
[Device & Common]
PLC
Error operation
code at error
occurrence
The following instructions cannot be used between
6626
STL and RET: MC, MCR, I, SRET and IRET
6627 The RET instruction is not provided.
The following instructions cannot be used in the main
6628 program:
I, SRET and IRET
Stops
The SRET or IRET instruction is not provided.
operation
6630 The STL-RET or MC-MCR instructions are provided
in a subroutine.
The SRET instruction is provided in an invalid
6631
position.
The FEND instruction is provided in an invalid
6632
position.
260
Contents of error
5.2 FX1S/FX1N/FX1NC/FX2N/FX2NC PLCs
Action
This error occurs when a combination of instructions is incorrect in
the entire circuit block or when the relationship between a pair of
instructions is incorrect.
Correct the instructions in the program mode so that their mutual
relationship becomes correct.
5 Errors