Mitsubishi Electric Q26UD(E)HCPU User Manual page 440

Error code
Error item
(Hexadecimal)
Link-related
4A00
H
error
Link-related
4A01
H
error
Link-related
4A02
H
error
Link-related
4A03
H
error
Link-related
4A04
H
error
IP
communication
4A20
H
test related
error
IP
communication
4A21
H
test related
error
438
Error details
• Access to the specified station cannot be
made since the routing parameters are not set
to the start source CPU module and/or relay
CPU module.
• For routing via a multiple CPU system, the
control CPU of the network module for data
routing has not started.
• When System A/System B is not yet identified
in a redundant system configuration,
communication was made with the other
station via the network module.
• The Built-in Ethernet port QCPU or the Built-in
Ethernet port LCPU that performs IP packet
transfer is not the control CPU of the CC-Link
IE module, which is on the path that an IP
packet takes.
• The network of the No. set to the routing
parameters does not exist.
• The specified CPU module cannot be
communicated through the network that is not
supported by the CPU module.
• The network of the No. set to the routing
parameters does not exist.
• The specified CPU module cannot be
communicated through the network that is not
supported by the CPU module.
Access to the specified station cannot be made.
A request for network test was issued.
A request is executed to the CPU module which
does not support all stations specification.
• The upper 2 bytes of the IP addresses do not
match between a CPU module and the
request destination device on the same path
that an IP packet takes.
• The upper 2 bytes of the IP addresses do not
match between a CPU module and a CC-Link
IE module on the same path that an IP packet
takes.
• The upper 2 bytes of the IP addresses do not
match between CC-Link IE modules on the
same path that an IP packet takes.
• The upper 2 bytes of the IP addresses do not
match between the request source device and
the CPU module connected to the request
destination device by Ethernet.
• The 3rd byte (Network No.) or 4th byte (Station
No.) of the IP address of the CPU module is
the number that is not available for CC-Link IE.
• The 3rd byte (Network No.) or 4th byte (Station
No.) of the IP address of the request
destination device is the number that is not
available for CC-Link IE.
Corrective action
• Set to the related stations the routing
parameters for access to the specified station.
• Retry after a while, or start communication after
confirming that the system for data routing has
started.
• In a redundant system configuration, connect
the tracking cable, start System A/System B
normally, and then restart communication.
• Set the Built-in Ethernet port QCPU or the Built-
in Ethernet port LCPU that performs IP packet
transfer as the control CPU of the CC-Link IE
module, which is on the path that an IP packet
takes.
• Check and correct the routing parameters set to
the related stations.
• Set communication through the network that is
supported by the specified CPU module.
• Check and correct the routing parameters set to
the related stations.
• Set communication through the network that is
supported by the specified CPU module.
• Check the network module and the data link
module for error or check that the modules are
not in offline.
• Check to see if the network number/PC number
setting has no mistake.
Check the request data of the MC protocol, etc.
• Replace the CPU module to the one which
supports all stations specification.
• Execute the request to the CPU module which
supports all stations specification.
• Check and correct the IP address settings of the
built-in Ethernet ports of the CPU module.
• Check and correct the IP address of the request
destination device.
• Check and correct the IP address of the CC-Link
IE module.
• Check and correct the IP address of the request
source device.
• Check and correct the IP address settings of the
built-in Ethernet ports of the CPU module.
• Check and correct the IP address of the request
destination device.
Corresponding
CPU
QCPU
LCPU
QnUDV
QCPU
LCPU
QCPU
LCPU
QCPU
LCPU
QnUDV
QCPU
LCPU
QCPU
LCPU