Mitsubishi FX3U SERIES User Manual page 263

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
Error PLC operation at
code error occurrence
Circuit error [M8066(D8066)]
⎯
0000
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
Stops
6620
operation
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
Operation error [M8067(D8067)]
0000
6701
6702
Continues
6703
operation
6704
6705
6706
6707
Contents of error
No error
LD, LDI is continuously used 9 times or more.
More ANB/ORB instructions than LD/LDI
instructions
Less ANB/ORB instructions than LD/LDI
instructions
MPS is continuously used 12 times or more.
No MPS instruction
No MPP instruction
No coil between MPS, MRD and MPP, or incorrect
combination
Instruction below is not connected to bus line:
STL, RET, MCR, P, I, DI, EI, FOR, NEXT, SRET,
IRET, FEND or END
STL, MC or MCR can be used only in main
program, but it is used elsewhere (e.g. in interrupt
routine or subroutine).
Invalid instruction is used in FOR-NEXT loop:
STL, RET, MC, MCR, I (interrupt pointer) or IRET.
FOR-NEXT instruction nesting level exceeded
Numbers of FOR and NEXT instructions do not
match.
No NEXT instruction
No MC instruction
No MCR instruction
STL instruction is continuously used 9 times or
more.
Invalid instruction is programmed within STL-RET
loop:
MC, MCR, I (interrupt pointer), SRET or IRET.
No STL instruction
Invalid instruction is used in main program:
I (interrupt pointer), SRET or IRET
No P or I (interrupt pointer)
No SRET or IRET instruction
STL-RET or MC-MCR instructions in subroutine
SRET programmed in invalid location
FEND programmed in invalid location
No error
• No jump destination (pointer) for CJ or CALL
instruction
• Label is undefined or out of P0 to P4095 due to
indexing
• Label P63 is executed in CALL instruction;
cannot be used in CALL instruction as P63 is for
jumping to END instruction.
CALL instruction nesting level is 6 or more
Interrupt nesting level is 3 or more
FOR-NEXT instruction nesting level is 6 or
more.
Operand of applied instruction is inapplicable
device.
Device number range or data value for operand of
applied instruction exceeds limit.
File register is accessed without parameter setting
of file register.
14 Test Operation, Adjustment, Maintenance and Troubleshooting
14.6 Judgment by Error Codes and Representation of Error Codes
Error codes in shaded columns are added in FX
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.
Modify the instructions in the program mode so that
their mutual relationship becomes correct.
This error occurs in the execution of operation.
Review the program, or check the contents of the
operands used in the applied instructions.
Even if the syntax or circuit design is correct, an
operation error may still occur.
For example:
"T200Z" itself is not an error. But if Z had a value of
400, the timer T600 would attempt to be accessed.
This would cause an operation error since there is
no T600 device available.
PLCs.
3U
Action
257
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