Mitsubishi Electric MELSEC-L SERIES Basic User Manual page 278

Error code
On the ARP table, there is no connected device with the IP
C034
H
address that has been set.
The existence of the connected device could not be
C035
H
checked within the response monitoring timer value.
Because a cable is not connected or disconnected, the
C036
H
send process cannot be executed.
• Not all the data could be received within the response
monitoring timer value.
• Sufficient data for the data length could not be received.
C040
H
• The remaining part of the message divided at the
TCP/IP level could not be received within the response
monitoring timer value.
There is an error in the checksum of the receive data when
C041
H
TCP is used.
There is an error in the checksum of the receive data when
C042
H
UDP is used.
The checksum in the header of the IP packet received is
C043
H
incorrect.
C044
An error packet of ICMP was received.
H
C045
An error packet of ICMP was received.
H
C046
An error packet of ICMP was received.
H
C047
An error packet of ICMP was received.
H
C048
An error packet of ICMP was received.
H
C049
An error packet of ICMP was received.
H
An error packet of ICMP was received. (An IP assembly
C04A
H
timeout error has occurred in the connected device.)
276
Error description Action
Decrease the number of communication destinations.
• Check the operation of the connected device.
• Correct the settings of the alive check.
• Check if the cable is disconnected.
• Check if the cable is disconnected.
• Perform the loopback test to check for an error in the line.
• Perform the self-diagnostics test to check for an error in
the Ethernet module.
• Correct the data length of the communication data.
• Because there may be congestion of packets on the line,
correct the settings of the initial process.
• Send the same data from the connected device again.
• Correct the checksum value sent from the connected
device and send the correct value.
• Check the situation of the line, such as noise, the distance
between the line and power cable, and the grounding of
each device.
• Correct the checksum value sent from the connected
device and send the correct value.
• Check the situation of the line, such as noise, the distance
between the line and power cable, and the grounding of
each device.
• Correct the checksum value sent from the connected
device and send the correct value.
• Check the situation of the line, such as noise, the distance
between the line and power cable, and the grounding of
each device.
• Check the operation of the connected device.
• Check if the cable is disconnected.
• Check the operation of the connected device.
• Check if the cable is disconnected.
• Check the operation of the connected device.
• Check if the cable is disconnected.
• Check the operation of the connected device.
• Check if the cable is disconnected.
• Check the operation of the connected device.
• Check if the cable is disconnected.
• Check the operation of the connected device.
• Because there may be congestion of packets on the line,
send data after a certain period of time.
• Check if the cable is disconnected.
• If an alive check timeout occurs, correct the IP assembly
timer value of the connected device.
• Check the operation of the connected device.
• Because there may be congestion of packets on the line,
send data after a certain period of time.
• Check if the cable is disconnected.
• If an alive check timeout occurs, correct the IP assembly
timer value of the connected device.