14 Troubleshooting
14-16
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Event name Communications Controller Failure Event code 04200000 hex
Meaning A hardware error was detected in the communications controller of the built-in EtherNet/IP port.
Source EtherNet/IP Function Module Source details Communications
port
Detection
timing
Continuously
Error attributes Level Partial fault Recovery Cycle the power
supply.
Log category System
Effects User program Continues. Operation EtherNet/IP communications will not operate.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
OFF Lights. ---
System-defined
variables
Variable Data type Name
_EIP_LanHwErr BOOL Communications Controller Error
Cause and
correction
Assumed cause Correction Prevention
Communications Controller hardware
error
Replace the CPU Unit. None
Attached
information
None
Precautions/
Remarks
After the _EIP_LanHwErr system-defined variable changes to TRUE, it will not change to FALSE unless the power sup-
ply to the Controller is cycled.
Event name MAC Address Error Event code 14200000 hex
Meaning The MAC address in non-volatile memory was not read correctly.
Source EtherNet/IP Function Module Source details Communications
port
Detection
timing
At power ON or
Controller reset
Error attributes Level Partial fault Recovery Cycle the power
supply.
Log category System
Effects User program Continues. Operation EtherNet/IP communications will not operate.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
OFF Lights. ---
System-defined
variables
Variable Data type Name
_EIP_MacAdrErr BOOL MAC Address Error
Cause and
correction
Assumed cause Correction Prevention
Non-volatile memory failure Replace the CPU Unit. None
Attached
information
None
Precautions/
Remarks
After the _EIP_MacAdrErr system-defined variable changes to TRUE, it will not change to FALSE unless the power
supply to the Controller is cycled.
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