Omron SYSMAC CJ1W-EIP21, Operation Manuals

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13 Troubleshooting
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
13-5 Even
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g
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13
13-5-3 Error Descr
iptions
Event name IP Address Duplication Error Event code 84E0 0000 hex
Meaning The same IP address is used more than once.
Source PLC Function Module Source details CJ-series Unit Detection
timing After determining
IP addresses
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation EtherNet/IP communications are not possible. Error
responses are returned to all communications requests.
Data refreshing with the PLC Function Module will con-
tinue.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
The IP address of the EtherNet/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 None
Precautions/
Remarks None