Mitsubishi Electric FX3U-ENET User Manual page 253

11 TROUBLESHOOTING
Error code
(abnormal Description of error
code)
C1A7 Incorrect network number was designated.
H
C1AC Incorrect resent count was designated.
H
C1AD Incorrect data length was designated.
H
Incorrect mail sending/receiving data length and
C1AE
H
header length were designated.
C1AF Incorrect port number was designated.
H
The open processing of the designated
C1B0
H
connection is already completed.
The open processing of the designated
C1B1
H
connection has not been completed.
The OPEN/CLOSE instruction is being
C1B2
H
executed in the designated connection.
Another sending/receiving instruction is being
C1B3
H
executed on the designated channel.
Incorrect mail destination number was
C1B6
H
designated.
System error
C203
H
• The OS detected any error.
System error
C206
H
• The OS detected any error.
The set limit number for MELSOFT connections
C280
H
is exceeded
A response could not be received within the
C300
H
response monitoring timer value.
* 1 Take corrective action using the following procedure.
1) Check whether the expansion connectors are connected correctly.
2) Check whether the operating environment of the Ethernet module is within the general
specifications range of the module.
3) Check whether the power supply capacity is sufficient or not.
4) Check whether the hardware of the Ethernet module, power supply block and PLC are normal
according to the manuals of the corresponding modules.
If any module is faulty, please request your local Mitsubishi service center or representative to
have it serviced.
5) If the problem cannot be solved through the above steps, please consult your local Mitsubishi
service center or representative, explaining the operation/communication conditions at the time of
error occurrence and the information stored in the error log area within the buffer memory of the
Ethernet module.
11 - 31
Error handling
• Correct the designated value of the network
number.
• Correct the designated value of the resent
count.
• Correct the designated value of the data
length.
• Correct the designated values of sending/
receiving data length and header length.
• Sending/receiving data length should be
equal or longer than the header length.
• Correct the designated value of the port
number.
• Execute the open processing after executing
the close processing.
• Execute the open processing.
• Execute after the OPEN/CLOSE instruction
is completed.
• Change the channel number.
• Execute after the sending/receiving
instruction is completed.
• Review the designated value of the mail
designation number.
• Review the sending mail address setting
parameter.
(*1)
(*1)
• Modify your open settings so that there are a
total of 4 or less MELSOFT connections/MC
protocol connections..
• Check the operation of the external device.
• Review and correct the response monitoring
timer value.
MELSEC-F
Storage destination
BFM# BFM# BFM# BFM# BFM#
105 124 125 126 229
BFM#
22649
11 - 31