Mitsubishi Electric NZ2GF-ETB, User Manual

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*1 When the device has been reconnected to the switching hub, or the switching hub has been replaced, it may take some
time to read the MAC address. If so, retry communications from the external device again after a while or power on the
switching hub again.
*2 A device on Ethernet has a table of IP addresses and their corresponding MAC address, called “ARP cache”. When a
device on the line is replaced by the one having the same IP address, the MAC address in the ARP cache is different
from that of the replaced device; therefore, communications may not be normally performed. The ARP cache is updated
by resetting the device or after a while. The time varies depending on the device.
Is the CC-Link IE Field Network gateway setting
correct? (This applies only when the request
source external device, request destination
external device, and modules between them do
not have the same first and second octets of the
IP address.)
• Check and correct the CC-Link IE Field Network gateway setting.
• Use the routing parameters of the master station and local stations to set the
communication route to the CC-Link IE Field Network gateway setting station.
Has the gateway setting been configured in the
external device? (Even if the IP communication
test is normally completed, IP communications
cannot be performed without the gateway
setting configured on the external device.)
Execute one of the following actions to configure the gateway setting in the external
device:
• Set the IP address of the Ethernet adapter module (Ethernet part) in the gateway
setting of the external device.
• Set the communication route on the external device side using the route command so
that communications can be transmitted to the external device through the Ethernet
adapter module. (This applies only to external devices that have the route command,
such as Microsoft

Windows

.)
When the gateway setting is completed, execute the Ping command from the external
device to check whether communications can be performed.
Is the firewall enabled on the external device?
Check and correct the firewall settings on the external device.
Is a response to the Ping command (ICMP echo request) enabled?
Is the antivirus software on the external device
blocking the communications?
Check and correct the antivirus software settings on the external device.
• Is the security setting level of the antivirus software low?
• Is a response to the Ping command (ICMP echo request) enabled in the firewall
settings?
When the external device has two or more
Ethernet ports, have different default gateway
settings been configured for each Ethernet port?
• Set the same IP address in the default gateway of each Ethernet port.
• Set the communication route on the external device side using the route command so
that communications can be transmitted to the external device through the Ethernet
adapter module. (This applies only to external devices that have the route command,
such as Microsoft

Windows

.)
When the gateway setting is completed, execute the Ping command from the external
device to check whether communications can be performed.
Is the switching hub normal?
• If an error has occurred in the switching hub, remove the error.
• If communications cannot be performed although no error has occurred in the
switching hub, replace the switching hub.
*1
Has any device on the line, such as an external
device, CPU module, Ethernet adapter module,
and switching hub, been replaced?
(This applies only when the device has been
replaced by the one having the same IP
address.)
Reset the device on the line.
*2
Checking Action
Ex.
Ex.