Mitsubishi Electric MELSEC-Q Structured Programming Manual page 261

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
6601
times or more.
• The LD or LDI instruction is not provided.
A coil is not provided.
The relationship between LD/LDI and ANB/ORB
is improper.
6602
• The STL, RET, MCR, EI, DI, SRET, IRET, FOR,
NEXT, FEND or END instruction, P (pointer) or I
(interrupt) is not connected to the bus line.
• The MPP instruction is not provided.
6603 The MPS instruction is used continuously 12 times or more.
The relationship among MPS, MRD and MPP
6604
instructions is improper.
• The STL instruction is used continuously 9 times
or more.
• The MC, MCR, I (interrupt) or SRET instruction is
6605 provided inside the STL instruction.
• The RET instruction is provided outside STL
instruction.
The RET instruction is not provided.
• P (pointer) or I (interrupt) are not provided.
• SRET or IRET instruction is not provided.
• I (interrupt), SRET or IRET instruction is provided
6606
in the main program.
• The STL, RET, MC or MCR instruction is provided
in a subroutine or interrupt routine.
• The relationship between the FOR instruction and
the NEXT instruction is improper.
The nesting level between the FOR instruction
6607 and the NEXT instruction is 6 or more.
• The STL, RET, MC, MCR, IRET, SRET, FEND or
END instruction is provided between the FOR
instruction and the NEXT instruction.
Stops
• The relationship between the MC instruction and
operation
the MCR instruction is improper.
• MCR NO is not provided.
6608
• The SRET or IRET instruction or I (interrupt) is
provided between the MC instruction and the
MCR instruction.
6609 Other 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
6620 The nesting level between FOR and NEXT is too much.
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
6625 The STL instruction is used continuously 9 times or more.
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
1
2
3
4
5
6
7
259