Mitsubishi Electric MELSEC iQ-R Series User Manual page 128

Error code Error name
4A24H IP communication test error
4A25H IP communication test error
4A27H IP communication test error
4A28H IP communication test error
4A29H IP communication test error
4A2AH IP communication test error
4B00H Target module error
4B02H Target module error
4B03H Target module error
4 TROUBLESHOOTING
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4.7 Error Codes
Error details and cause
• The network module on the path that IP packets
travel does not support the IP packet transfer
function.
• Routing parameters are set so that IP packets are
routed to the network module that does not
support the IP packet transfer function.
• The third octet (Network No.) of the IP address of
the device on the path that IP packets travel is
overlapping with the network No. of the module
connected to the CPU module and does not
support the IP packet transfer function.
• The third octet (Network No.) of the IP address of
the request destination device is overlapping with
the network No. of the module connected to the
CPU module and does not support the IP packet
transfer function.
• The IP packet transfer setting is not set in the CPU
module or the Ethernet module connected with the
request source device.
• Routing parameters are set so that IP packets are
routed to the CPU module where IP packet
transfer setting is not set.
• The Ethernet module is not mounted with the
remote head module.
• In the Ethernet module, "Disable" is selected for
"Communications by Network No./Station No."
under "Own Node Settings" of "Module
Parameter".
• In the Ethernet module, the third octet (network
No.) of the IP address and the network number
are not the same in "Own Node Settings" of
"Module Parameter". Or, the fourth octet of the IP
address and the station number are not the same.
The CPU module that performs IP packet transfer is
not the control CPU of the CC-Link IE module, which
is on the path that IP packets travel.
In the remote head module, the request path and the
response path of IP packets differ.
The third octet (network No.) of the IP address of the
request destination device is overlapping with the
request source device and third octet (network No.)
of the IP address of the Ethernet module.
An IP address of a device on CC-Link IE Controller
Network or CC-Link IE Field Network or that of the
CPU module is not specified.
• An error occurred in the access destination or the
relay station.
• The specified connection destination (request
destination module I/O number) is incorrect.
• The CPU module or remote head module of the
access destination has not started up.
The request is not addressed to the remote head
module.
• The specified route is not supported by the
specified CPU module or remote head module
version.
• The communication target CPU module or remote
head module is not mounted.
Action
• Replace the CC-Link IE module with the one
supporting the IP packet transfer function.
• Correct routing parameter so that IP packets are
routed to the CC-Link IE module that supports the
IP packet transfer function.
• Check and correct the setting so that the third
octet (Network No.) of the IP address of the device
on the path that IP packets travel does not overlap
with the network No. of the module connected to
the CPU module and does not support the IP
packet transfer function.
• Check and correct the setting so that the third
octet (Network No.) of the IP address of the
request destination device does not overlap with
the network No. of the module connected to the
CPU module and does not support the IP packet
transfer function.
• Check and correct the IP address of the request
destination device.
• In the CPU module, select "Use" for the IP packet
transfer function setting in the CPU parameters.
• In the Ethernet module, select "Use" for the IP
packet transfer function setting in the module
parameters.
• Correct routing parameters so that IP packets are
routed to the CPU module where IP packet
transfer setting is set.
• Check and correct the IP address of the request
destination device.
• Mount the Ethernet module with the remote head
module.
• Select "Enable" for "Communications by Network
No./Station No." under "Own Node Settings" of
"Module Parameter" in the Ethernet module.
• Check and correct the network number and
station number of the Ethernet module.
Set the CPU module that performs IP packet transfer
as the control CPU of the CC-Link IE module, which
is on the path that IP packets travel.
Correct the routing parameter setting so that IP
packets travel the same path for both request and
response transmission.
• Check and correct the IP address settings of the
Ethernet module.
• Check and correct the IP address of the request
destination device.
Specify an IP address of a device on CC-Link IE
Controller Network or CC-Link IE Field Network or
that of the CPU module.
• Check the error occurred in the specified access
destination or the relay station, and take an action.
• Check the connection destination (request
destination module I/O number or request
destination station number (PC number)) in the
request data of SLMP/MC protocol.
• Check the stop error in the CPU module or the
moderate or major error in the remote head
module, and take an action.
Perform operation for the module that can execute
the specified function.
• Check whether the specified route is supported or
not.
• Check the mounting status of the CPU module or
remote head module.
• Check the stop error in the CPU module or the
moderate or major error in the remote head
module, and take an action.