Operation When An Error Occurs; How To Clear Errors; List Of Error Codes - Mitsubishi Electric FX5 User Manual
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Operation when an error occurs
There are two types of errors: continuation errors and stop errors.
Stop error
If a stop error occurs, the CPU module stops its operation and the operating state will be in STOP. Modules can communicate
with the CPU module even after a stop error occurs in the CPU module.
Continuation error
If a continuation error occurs, the CPU module continues its operation. (The operating state will remain the same.)
How to clear errors
Continuation errors can be cleared. (Page 159 Error Clear)
List of error codes
Self-diagnostics error codes of the CPU module (1000H to 3FFFH)
The following table lists the error codes detected by the self-diagnostics function of the CPU module.
Error
Error name
Error details and cause
code
1080H
ROM write count
• The number of writes to the data memory
error
exceeded 20,000 times.
1090H
Battery error
• Low battery voltage was detected. An
error was also detected in a battery
latched (backed) device.
1110H
Memory card
• Writing failed because the write protect
access error
switch of the memory card is enabled
(writing is prohibited).
112EH
Connection
• The connection was not established
establishment
during the open process.
failed
1130H
IP address
• Overlapping IP addresses were
duplication error
detected.
1134H
TCP connection
• A TCP ULP timeout error has occurred in
timeout
the TCP/IP communication. (The
external device does not send an ACK
response.)
1800H
Annunciator ON
• An annunciator that was turned ON by
the SET F instruction or OUT F
instruction was detected.
1810H
Operation error
• The channel specified by instructions
using communication functions or built-in
I/O is already used by other instructions.
1811H
Operation error
• The number of times that applied
instructions are used in the program
exceeded the specified limit.
Action
• Replace the CPU module.
• Check the connection of the battery.
• Replace the battery as soon as possible.
• Disable the write protect switch of the
memory card.
• Check the operation of the external device.
• Use an external device to confirm whether
the open process was executed.
• Review the port No. of the module with
Ethernet, the IP address/port No. of the
external device, and the opening method.
• If the external device has a firewall set,
check whether access is permitted.
• Check whether the Ethernet cable is
disconnected.
• Check the IP address.
• Check the operation of the external device.
• Review the TCP ULP timeout value for the
module with Ethernet.
• Since there may be congestion of packets on
the line, send data after a certain period of
time.
• Check if the connection cable is
disconnected.
• Check the program of that number
(annunciator number).
• Verify that the channel specified by
instructions using communication functions
or built-in I/O is not used by other
instructions.
• Verify that the number of times that applied
instructions are used in the program does
not exceed the specified limit.
Detailed
Diagnostic
information
timing
Frequency
At write
information
At END
instruction
execution
At write
At END
instruction
execution
Always
Error location
At instruction
information
execution
and
annunciator
information
Error location
At instruction
information
execution
Error location
At instruction
information
execution
APPX
401
Appendix 3 Error Code
A
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