Omron CJ1W-EIP21 Operation Manuals page 363

Event name IP Address Duplication Error
Meaning The same IP address is used more than once.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The IP address of the EtherNet/IP
port is also used as the IP address of
another node.
Attached None
information
Precautions/ None
Remarks
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
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.
13 Troubleshooting
Event code 84E0 0000 hex
CJ-series Unit Detection
timing
Error reset Log category
EtherNet/IP communications are not possible. Error
responses are returned to all communications requests.
Data refreshing with the PLC Function Module will con-
tinue.
Name
---
Prevention
Perform allocations so that IP
addresses of nodes on the network
are used for only one node.
After determining
IP addresses
System
13
13-45