14-19
14 Troubleshooting
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
14-2 Troubleshooting
14
14-2-2 Error Descriptions
Event name IP Address Duplication Error Event code 84010000 hex
Meaning The same IP address is used more than once.
Source EtherNet/IP Function Module Source details Communications
port
Detection
timing
After link is
established
Error attributes Level Partial fault Recovery Cycle the power
supply or reset
the Controller.
Log category System
Effects User program Continues. Operation EtherNet/IP communications will not operate. Packets
addressed to the local IP address are discarded.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
OFF Flashes at 1-s intervals. ---
System-defined
variables
Variable Data type Name
_EIP_IPAdrDupErr BOOL IP Address Duplication Error
Cause and
correction
Assumed cause Correction Prevention
The IP address of the built-in Ether-
Net/IP port is also used as the IP
address of another node.
Perform either of the following and
then cycle the power supply to the
Controller or reset the Controller.
• Check the IP addresses of other
nodes and correct the IP address
settings so that the same address is
not used by more than one node.
• Remove the node that has the
duplicate IP address from the net-
work.
Perform allocations so that IP
addresses of nodes on the network
are used for only one node.
Attached
information
Attached information 1: Duplicated IP address (example: C0A8FA01 hex = address 192.168.250.1)
Precautions/
Remarks
A duplicated address error occurs if an ARP is sent with the set IP address and there is an ARP response.
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