15-25
15 Troubleshooting
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
15-2 Troubleshooting
15
15-2-2 Error Descriptions
*1 This applies to an NJ-series CPU Unit.
*2 This applies to an NX-series CPU Unit.
* This event code occurs for unit version 1.10 or later of the CPU Unit.
Event name Identity Error Event code 1421 0000 hex
Meaning The CIP identity information in non-volatile memory was not read correctly.
Source EtherNet/IP Function Module Source details
CIP,
*1
CIP1,
*2
or
CIP2
*2
Detection
timing
At power ON or
Controller reset
Error attributes Level Minor fault Recovery Cycle the power
supply.
Log category System
Effects User program Continues. Operation EtherNet/IP communications are not possible for the rele-
vant communications port.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
--- Lights. ---
System-defined
variables
Variable Data type Name
_EIP_IdentityErr
*1
BOOL Identify Error
_EIP1_IdentityErr
*2
BOOL CIP Communications1 Identity Error
_EIP2_IdentityErr
*2
BOOL CIP Communications2 Identity Error
Cause and
correction
Assumed cause Correction Prevention
Non-volatile memory failure Replace the CPU Unit. None
Attached
information
None
Precautions/
Remarks
None
Event name MAC Address Error Event code 14230000 hex*
Meaning The MAC address in non-volatile memory was not read correctly.
Source EtherNet/IP Function Module Source details Communications
port 1 or 2
Detection
timing
At power ON or
Controller reset
Error attributes Level Minor fault Recovery Cycle the power
supply.
Log category System
Effects User program Continues. Operation EtherNet/IP communications are not possible for the rele-
vant communications port.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
OFF Lights. ---
System-defined
variables
Variable Data type Name
_EIP1_MacAdrErr BOOL Port1 MAC Address Error
_EIP2_MacAdrErr BOOL Port2 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 _EIP1_MacAdrErr or _EIP2_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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