780
APPX
Appendix 1 Error Codes
4A23H IP
communication
test error
• The CPU 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
CPU modules that are incompatible with IP packet transfer.
• Replace the CPU module with the one supporting the IP
packet transfer function.
• Correct routing parameter so that IP packets are routed to
the CPU module that supports the IP packet transfer
function.
• Check and correct the IP address of the request destination
device.
4A24H IP
communication
test error
• The CC-Link IE 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 3rd byte (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 3rd byte (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.
• 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 3rd byte (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 3rd byte (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.
4A25H IP
communication
test error
• The IP packet transfer setting is not set.
• Routing parameters are set so that IP packets are routed to
the CPU module where IP packet transfer setting is not set.
• Select "Use" for the IP packet transfer function setting in the
CPU 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.
4A27H IP
communication
test error
• 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.
• 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.
4A28H IP
communication
test error
• In the system where the CPU module is connected to the
request destination device over Ethernet, the request path
and the response path of IP packets differ.
• When multiple CC-Link IE modules with the same network
number are connected in a multiple CPU system, the CC-
Link IE module mounted on the lowest number slot is not set
as a controlled module of the CPU module that transfers IP
packets.
• When multiple CC-Link IE modules with the same network
number are connected in a single or multiple CPU system,
the station number of the CC-Link IE module mounted on
the lowest number slot is not set as a relay station number in
routing parameter.
• Correct the routing parameter setting so that IP packets
travel the same path for both request and response
transmission.
• When multiple CC-Link IE modules with the same network
number are connected in a multiple CPU system, set the
module mounted on the lowest number slot as a controlled
module that transfers IP packets.
• When multiple CC-Link IE modules with the same network
number are connected in a single or multiple CPU system,
set the station number of the module mounted on the lowest
number slot as a relay station number in routing parameter.
4A29H IP
communication
test error
• The 3rd byte (network No.) of the IP address of the request
destination device is overlapping with the 3rd byte of the IP
address of the CPU module connected to the request source
device over Ethernet.
• Check and correct the IP address settings of the CPU
module.
• Check and correct the IP address of the request destination
device.
4A2AH IP
communication
test error
• An IP address of a device on CC-Link IE network or the CPU
module is not specified.
• Specify an IP address of a device on CC-Link IE network or
the CPU module.
4
B00H Target module
error
• An error occurred in the access destination or the relay
station.
• The specified connection destination (request destination
module I/O number) is incorrect.
• The access destination CPU module has not started up.
• The target CPU No. specified does not exist.
• 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 PC number) in the request data of
SLMP/MC protocol.
• Check the stop error, and take an action.
• Check and correct the target CPU No.
4B02H Target module
error
• The request is not addressed to the CPU module. • Perform operation for the module that can execute the
specified function.
4B03H Target module
error
• The specified route is not supported by the specified CPU
module version.
• The communication target CPU module is not mounted.
• A device mounted on the specified route does not support
communications.
• Check whether the specified route is supported or not.
• Check the mounting status of the CPU module.
• Check the stop error, and take an action.
Error
code
Error name Error details and cause Action