Chapter 10 Troubleshooting
10-11
10.5 Error Code List
Error Type Message
Code
(F006)
CPU
State
Cause Corrective Actions
Internal
system
error
System Error
h0001
Stop
Fault of some area of operating ROM,
or H/W defect
Contact the service
center.
OS ROM
error
OS ROM
Error
h0002
Stop Internal system ROM is defected
Contact the service
center.
OS RAM
error
OS RAM
Error
h0003
Stop Internal system RAM is defected
Contact the service
center.
Data RAM
error
DATA RAM
Error
h0004
Stop Data RAM is defected
Contact the service
center.
Program
RAM error
PGM RAM
Error
h0005
Stop Program RAM is defected
Contact the service
center.
Gate array
error
G/A Error
h0006
Stop
Defect of dedicated LSI for sequence
instruction processing
Contact the service
center.
OS WDT
error
OS WDT
error
h0008
Stop CPU OS watch dog error
Turn the power off and
restart the system.
Contact the service
center
Common
RAM error
Common
RAM Error
h0009
Stop Common RAM interface error
Contact the service
center.
Instruction
code error
OP Code
Error
h000B
Stop
Instructions unreadable by the CPU
are included. (during execution)
Contact the service
center.
Flash
memory
error(during
execution)
User Memory
Error
h000C
Stop
Read to/Write from the inserted Flash
memory is not performed.
Check and replace the
flash memory.
Parameter
Error
Parameter
Error
h0020
Stop
A written parameter has changed, or
checksum error
Correct the content of the
parameter.
Operation
Error
Operation
Error
h0030 Stop
(Continu
e)
· • A digit of other than 0 to 9 has met
during BCD conversion.
• An operand value is outside the defined
operand range.
Correct the content of the
error step.
WDT Over WDT Over h0031 Stop
Scan time has overrun the watch dog
time.
Check the maximum scan
time of the program and
modify the program or
insert programs.
Error of
Program
Change
during run.
PGM Change
Error
h0032
Stop
An error has occurred at program
change during run.
Program replacement has
not been completed during
run.
Program
Check Error
PGM Change
Error
h0033 Continue An error has occurred while checking a
program.
Correct the error.
Code
Check
Error
Code Check
Error
h0040
Stop
An instruction unreadable by the CPU is
included.
Correct the error step.
Missing the
END
instruction
in the
program
Miss END
Error
h0041
Stop
The program does not have the END
instruction.
Insert the END instruction
at the bottom of the
program.
Missing the
RET
instruction
in the
program.
Miss RET
Error
h0042
Stop
The subroutine does not has the RET
instruction at its bottom.
Insert the RET
instruction.
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