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CHAPTER 16 TROUBLESHOOTING
16
16.7 Error Code List
16.7.3 Error codes stored in the buffer memory
C04B
H
An IP assembly timeout error has occurred. (The
remaining part of the divided data could not be received
and a timeout has occurred.)
• 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.
• Correct the IP assembly timer value and perform the initial
process again.
C04C
H
• Because there is no space in the internal buffer, such as
the IP header buffer, data cannot be sent.
• Send the same data again and check the receipt of a
response.
C04D
H
• In communications using an auto-open UDP port or
communications using a fixed buffer in the "No
Procedure" control method, there is an error in the data
length specified in the application data of the message
received by the Ethernet module.
• Not all the receive data can be stored.
• Correct the data length.
• Correct the text size so that the text data size is within the
receive buffer memory size.
C050
H
When "ASCII Code" has been selected in the
communication data code setting in the Ethernet operation
setting, ASCII code data which cannot be converted into
binary code data has been sent from the connected
device.
• Select "Binary Code" in the Ethernet operation setting.
Then restart the Ethernet module to perform
communications again.
• Check and correct the data sent from the connected
device and send it again.
C051
H
The number of read/write points is outside the allowable
range.
• Correct the number of read/write points and send the data
to the Ethernet module again.
C052
H
The number of read/write points is outside the allowable
range.
• Correct the number of read/write points and send the data
to the Ethernet module again.
C053
H
The number of read/write points is outside the allowable
range.
• Correct the number of read/write points and send the data
to the Ethernet module again.
C054
H
The number of read/write points is outside the allowable
range.
• Correct the number of read/write points and send the data
to the Ethernet module again.
C055
H
• The number of file data read/write points is outside the
allowable range.
• Correct the number of read/write points (or the number of
bytes) and send the data to the Ethernet module again.
C056
H
• The read/write request exceeds the largest address.
• The address is 0.
• Correct the start address or the number of read/write
points and send the data to the Ethernet module again.
(Make sure that the request does not exceed the largest
address.)
C057
H
The request data length does not match with the number of
data in the character (a part of text).
• Check and correct the text or requested data length of the
Qn header. Then send the data to the Ethernet module
again.
C058
H
The request data length after the ASCII/binary conversion
does not match with the number of data in the character (a
part of text).
• Check and correct the text or requested data length of the
Qn header. Then send the data to the Ethernet module
again.
C059
H
Incorrect designation of the command and subcommand • Correct the request details.
C05A
H
The Ethernet module cannot read/write data from/to the
specified device.
• Check the device for read/write.
C05B
H
The Ethernet module cannot read/write data from/to the
specified device.
• Check the device for read/write.
C05C
H
Incorrect request (For example, a request for data
read/write in bit units has been issued to a word device.)
• Correct the request details and send it to the Ethernet
module again. (For example, change the subcommand.)
C05D
H
The monitor registration is not performed. • Register the monitoring data and perform monitoring.
Error code Error description Action
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