Mitsubishi MELSEC-F User Manual page 256

11 TROUBLESHOOTING
Error code
(abnormal Description of error
code)
C1AD Incorrect data length was designated.
H
Incorrect mail sending/receiving data length
C1AE
H
and 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.
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• 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.
• Modify your open settings so that there are a
total of 4 or fewer MELSOFT
connections/MC protocol connections..
• Check the operation of the external device.
• Review and correct the response monitoring
timer value.
1 Take corrective action in 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 repair.
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 error occurrence and the information stored in the error log area within
the buffer memory of the Ethernet module.
Error handling
( 1)
( 1)
MELSEC-F
Storage destination
BFM# BFM# BFM# BFM# BFM#
105 124 125 126
BFM#
229 22649
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