Mitsubishi Electric MELSEC-Q Structured Programming Manual page 250

FXCPU Structured Programming Manual
[Device & Common]
PLC
Error operation
code at error
occurrence
Circuit error [M8066(D8066)]
0000 - No error
The LD or LDI instruction is used continuously 9
6610
times or more.
The number of ANB or ORB instructions is more than
6611
the number of LD or LDI instructions.
The number of ANB or ORB instructions is less than
6612
the number of LD or LDI instructions.
6613 MPS is used continuously 12 times or more.
6614 MPS is not provided.
6615 MPP is not provided.
A coil is not used between MPS-MRD and MPP, or
6616
the relationship between them is improper.
The following instructions should be connected to bus
6617 line: STL, RET, MCR, P, I, DI, EI, FOR, NEXT,
SRET, IRET, FEND and END
The following instructions which can be used only in
6618 the main program are used in any other place (such
as interrupt and subroutine): STL, MC and MCR
The following instructions cannot be used between
6619
FOR and NEXT: STL, RET, MC, MCR, I and IRET
The nesting level between FOR and NEXT is too
6620
Stops
much.
operation
The number of FOR instructions and the number of
6621
NEXT instructions do not agree.
6622 The NEXT instruction is not provided.
6623 The MC instruction is not provided.
6624 The MCR instruction is not provided
The STL instruction is used continuously 9 times or
6625
more.
The following instructions cannot be used between
6626
STL and RET: MC, MCR, I, SRET and IRET
6627 The STL instruction is not provided.
The following instructions cannot be used in the main
6628
program: I, SRET and IRET
6629 P or I is not provided.
The SRET or IRET instruction is not provided.
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.
248
Contents of error
5.1 FX3S/FX3G/FX3GC/FX3U/FX3UC 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