Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual page 168

Error Error definition and causes
code
C032H The external device does not send an ACK
response in the TCP/IP communications.
C035H The alive status of an external device
could not be checked.
C037H • The receive buffer or send buffer is not
sufficient.
• The window size of the external device
is not sufficient.
C038H Data was not sent correctly with UDP/IP.
C039H Data was not sent correctly with TCP/IP.
C040H • Sufficient data for the data length could
not be received.
• The remaining part of the message
divided at the TCP/IP level could not be
received.
C050H ASCII code data that cannot be converted
to binary code was received.
C051H • The number of read/write points from/to
the device of SLMP message is out of
the allowable range in the CPU module
(in units of words).
• The number of write points for the long
counter of SLMP message is not in two-
word units.
C052H The number of read/write points from/to
the device of SLMP message is out of the
allowable range in the CPU module (in
units of bits).
C053H The number of read/write points from/to
the random device of SLMP message is
out of the allowable range in the CPU
module (in units of bits).
C054H The number of read/write points from/to
the random device of SLMP message is
out of the allowable range in the CPU
module (in units of words, double words).
C055H The read/write size from/to the file data of
SLMP message is out of the allowable
range.
C056H The read/write request exceeds the largest
address.
10 TROUBLESHOOTING
166
10.5 List of Error Codes
Action
• Since there may be congestion of packets on the line, send data after a
certain period of time.
• Check if the Ethernet cable is disconnected.
• Check the operation of the external device.
• Check if the Ethernet cable is disconnected.
• Check the operation of the external device or switching hub.
• When the value of the 'Receive Buffer Status Storage Area' (Un\G68126)
is 0001H, reduce the reception frequency of data from the external
device.
• Check the settings for connection with the external device (including a
switching hub) and the operation of the external device (error or during
resetting). Check that there is no connection failure (if the Ethernet cable
is disconnected).
• Since there may be congestion of packets on the line, send data after a
certain period of time.
• Execute the PING test and communication status test, and if the test was
completed with an error, take the corrective action.
• Correct the network number and station number/IP address of the target
station of the dedicated instruction.
• Check the settings for connection with the external device (including a
switching hub) and the operation of the external device (error or during
resetting). Check that there is no connection failure (if the Ethernet cable
is disconnected).
• Since there may be congestion of packets on the line, send data after a
certain period of time.
• Execute the PING test and communication status test, and if the test was
completed with an error, take the corrective action.
• Correct the data length of the communication data.
• Since there may be congestion of packets on the line, send the data again
from the external device after a random amount of time has passed.
Check if the ASCII code data that cannot be converted into binary code data
was sent from the external device.
Correct the number of read/write points and send the SLMP message to the
Ethernet-equipped module again.
Correct the number of read/write points and send the SLMP message to the
Ethernet-equipped module again.
Correct the number of read/write points and send the SLMP message to the
Ethernet-equipped module again.
Correct the number of read/write points and send the SLMP message to the
Ethernet-equipped module again.
Correct the read/write size and send the SLMP message to the Ethernet-
equipped module again.
• Correct the start address or the number of read/write points so that the
request does not exceed the largest address and send the data to the
Ethernet-equipped module again.
• If the access target and connection stations are modules of the MELSEC
iQ-R series, send the SLMP message again to the Ethernet-equipped
module using 003 and 002 of subcommands.
Detailed
information 1
Detailed
information 2
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