Omron CJ1W-EIP21 用户手册

If a memory error occurs in the error log area of EEPROM, the record will not
be stored in EEPROM.

Use the following table to troubleshoot the system when the CPU Unit’s ERR/
ALM indicator is lit or flashing when the EtherNet/IP Unit or built-in EtherNet/
IP port is mounted.

For details, refer to the CPU Unit’s Operation Manual.

03D3

Link OFF error

00 hex

00 hex

No

03D4

Verification error (Tag data link only)

Note For details on identifying the cause of 

the verification error, refer to 14-3 
Connection Status Codes and Error 
Processing.
This error will not be stored when a 
target node is missing for version 2.0 
or higher.

Connection instance num-
ber (0 to 255)

Lower byte of IP address

No

03D5

Tag data link error

00 hex

Lower byte of IP address

No

0601

CPU Bus Unit error

Variable

Yes

0602

CPU Bus Unit memory error

01: Read error

02: Write error

02 hex: Network parame-
ter

06 hex: Error log

09 hex: Identity data

0E hex: Unit name

0F hex: Ethernet basic 
setting

10 hex: Ethernet 
advanced setting

11 hex: MAC address

12 hex: Status area layout 
setting

14 hex: Term Tag address 
resolution memory write 
error 

Yes 

(See 
note.)

• Confirm that the Unit is connected properly.
• Check the I/O table with the I/O Table Verification operation 

and correct it if necessary. After correcting it, perform the I/O 
Table Create operation.

• The CPU Bus Unit model registered in the I/O tables does 

not match the model of CPU Bus Unit actually mounted. 
Check the I/O tables with the I/O Table Verification operation 
and correct it if necessary.
After correcting the I/O tables, perform the I/O Table Create 
operation.

• Confirm that the Unit is connected properly.
• Restart the Unit. Replace the Unit if it doesn’t restart.

• Confirm that the Unit is connected properly.
• Restart the Unit. Replace the Unit if it doesn’t restart.