Mitsubishi Electric MELSEC iQ-R Series User Manual page 217

Error Error definition and causes
code
C012H The port number used in a connection
already opened is set. (For TCP/IP)
C013H The port number used in a connection
already opened is set. (For UDP/IP)
C015H The data was sent to the connected device
while the IP address setting of the device set
in the network configuration setting was
incorrect.
C017H A connection could not be established in the
open processing.
C018H The specified IP address of the external
device is incorrect.
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 via 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).
Action
Correct the port numbers of the CC-Link IE TSN-equipped module and the
external device.
Correct the port numbers of the CC-Link IE TSN-equipped module and the
external device.
• Correct the IP address of the connected device in the network
configuration setting.
• Check that the IP address class of the connected device is set to A, B, or
C in the network configuration setting.
• Check the operation of the external device.
• Check if the open processing has been performed in the external device.
• When a firewall is set in the external device, check if access is permitted.
• Check if the Ethernet cable is connected properly.
Correct the specified IP address of the external device.
• Since there may be congestion of packets on the line, send data after a
certain period of time.
• Check if the Ethernet cable is connected properly.
• Check the operation of the external device.
• Correct the timer setting for data communication of the CC-Link IE TSN-
equipped module.
• Check if the Ethernet cable is connected properly.
• Check the operation of the external device or switching hub.
• When the value of the 'Receive buffer status storage area'
(Un\G6291486) is 0001H, reduce the frequency of data received from the
external device.
• Check that the external device (including a switching hub) has no error in
the connection setting, operation (an error and being in a reset state, or
others), and connection (error such as a connection cable being
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 or IP address of the
target station of the dedicated instruction.
• Check that the external device (including a switching hub) has no error in
the connection setting, operation (an error and being in a reset state, or
others), and connection (error such as a connection cable being
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
CC-Link IE TSN-equipped module again.
Correct the number of read/write points and send the SLMP message to the
CC-Link IE TSN-equipped module again.
Detailed
information 1
Detailed
information 2
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4 TROUBLESHOOTING
215
4.5 List of Error Codes
4