Mitsubishi Electric MELSEC iQ-R Series User Manual page 418

Error Error definition and causes
code
C027H Sending a message over socket
communication failed.
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 • Not all the data could be received within
the response monitoring timer value.
• 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).
19 LIST OF ERROR CODES
416
19.1 Error Codes When a Module Error Occurs
Action
• Check the operation of the external device or switching hub.
• 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 that there is no connection failure with the switching hub.
• Execute the communication status test, and if the test was completed with
an error, take the corrective action.
• Execute the module communication test, and check that there is no failure
in the module.
• Check the IP address specified as the destination.
• 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 settings 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.
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










