Mitsubishi Electric Q26UD(E)HCPU User Manual page 422

Error code
Error item
(Hexadecimal)
Ethernet I/F
4184
H
Error
Ethernet I/F
4185
H
Error
Ethernet I/F
4186
H
Error
Ethernet I/F
4187
H
Error
Ethernet I/F
4188
H
Error
Ethernet I/F
4189
H
Error
Ethernet I/F
418A
H
Error
420
Error details
• Communication processing buffer has run out
of space due to consecutive reception of
request messages using the MC protocol.
• Communication processing buffer has run out
of space because received data read is not
performed or cannot keep up with the volume.
• Communication processing is disabled due to
insufficient space in the communication
processing buffer.
• Connection to the target device is
disconnected before sending a response using
the MC protocol.
• Connection to the target device is
disconnected during communication.
System error (The argument data in OS is
abnormal.)
System error (The wait processing in OS is
abnormal.)
System error (The data length in OS is
abnormal.)
System error (The protocol information in OS is
abnormal.)
System error (The address data of
communicating module in OS is abnormal.)
Corrective action
• For MC protocol, send a request after receiving
a response to the previous request.
• For socket communication, enable received data
read.
• For socket communication, decrease the
number of data sent from the target device.
• For MC protocol, keep the connection until a
response is sent.
• Keep the connection until a sequence of
communication is completed.
• Other error such as 4184 may be the cause. If
H
any other error has occurred, take corrective
action of that error.
• Check that the power supply module and the
CPU module are mounted/connected properly.
• Check that the system is operating within the
general specifications of the CPU module.
• Check whether the power capacity is sufficient.
• Reset the CPU module.
• Execute again. If the same error code is
displayed, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
• Check that the power supply module and the
CPU module are mounted/connected properly.
• Check that the system is operating within the
general specifications of the CPU module.
• Check whether the power capacity is sufficient.
• Reset the CPU module.
• Execute again. If the same error code is
displayed, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
• Check that the power supply module and the
CPU module are mounted/connected properly.
• Check that the system is operating within the
general specifications of the CPU module.
• Check whether the power capacity is sufficient.
• Reset the CPU module.
• Execute again. If the same error code is
displayed, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
• Check that the power supply module and the
CPU module are mounted/connected properly.
• Check that the system is operating within the
general specifications of the CPU module.
• Check whether the power capacity is sufficient.
• Reset the CPU module.
• Execute again. If the same error code is
displayed, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
• Check that the power supply module and the
CPU module are mounted/connected properly.
• Check that the system is operating within the
general specifications of the CPU module.
• Check whether the power capacity is sufficient.
• Reset the CPU module.
• Execute again. If the same error code is
displayed, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
Corresponding
CPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU
*2
QnU
*2
LCPU