Mitsubishi Electric QJ71E71-100 User Manual page 318

Error
code
A TCP ULP timeout error has occurred in the TCP/IP
C032
communication. (The connected device does not send
H
an ACK response.)
There is no connected device with the IP address that
C033
H
has been set.
On the ARP table, there is no connected device with the
C034
H
IP 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
C040
received.
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
C041
H
when TCP is used.
There is an error in the checksum of the receive data
C042
H
when UDP is used.
The checksum in the header of the IP packet received is
C043
H
incorrect.
316
Error description
• Check the operation of the connected device.
• Correct the TCP ULP timeout value and perform the initial process
again.
• Because there may be congestion of packets on the line, send
data after a certain period of time.
• Check if the cable is disconnected.
• Check if there is a problem with the connection to the transceiver
or terminating resistor.
• Correct the IP address of the connected device and the Ethernet
address.
• Use the default value (FFFFFFFFFFFF
has the ARP function. If it does not have the function, set the MAC
address.
• 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.
• Check if there is a problem with the connection to the transceiver
or terminating resistor.
• 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 there is a problem with the connection to the transceiver
or terminating resistor.
• Check if the cable is disconnected.
• Check if there is a problem with the connection to the transceiver
or terminating resistor.
• 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.
Action
) if the connected device
H