Omron NXEIP202 User Manual page 334

12 Troubleshooting
Event name Link OFF Detected
Meaning Disconnection of an Ethernet link was detected.
Source EtherNet/IP
Error Level
attributes
Effects User program
Sys- Variable
tem-defined
None
variables
Cause and Assumed cause
correction
An Ethernet cable is broken, dis-
connected, or loose.
The Ethernet switch power supply
is turned OFF.
Link speed mismatch.
Noise
Attached None
information
Precautions/ None
Remarks
12 - 46
Source details
Observation Recovery
Continues. Operation
Data type
---
Correction
Connect the Ethernet cable
securely. If the cable is broken,
replace it.
Turn ON the power supply to the
Ethernet switch. Replace the
Ethernet switch if it fails.
Make the port settings at the
remote node to the auto negotia-
tion setting.
Implement noise countermea-
sures if there is excessive noise.
Event code 84540000 hex
EtherNet/IP Detection
Coupler Unit timing
Reset error in Log category
EtherNet/IP
Coupler Unit.
Not affected.
Name
---
Prevention
Connect the Ethernet cable
securely. Check the cable to make
sure that it is not disconnected.
Do not turn OFF the power supply
to the Ethernet switch.
Make the port settings at the
remote node to the auto negotia-
tion setting.
Implement noise countermea-
sures.
NX-series EtherNet/IP Coupler Unit User's Manual (W536)
After link is
established
System