Omron CJ1W-EIP21 User Manual

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E3

Server Con-
nection Error

An error 
occurred in 
communica-
tions with the 
DNS server.

The DNS Server 
Error Flag (n+14, bit 
05) will turn ON.

03C4

De-
tails: 
00xx

Perform one of the 
following:

• Correct the DNS 

server settings.

• Check the com-

munications path 
(EtherNet/IP Unit 
or built-in 
EtherNet/IP port, 
cable connec-
tions, hubs, rout-
ers, and servers) 
and correct any 
problems.

An error 
occurred with 
the BOOTP 
server.

1. There was no 

response 
from the 
BOOTP serv-
er.

2. The BOOTP 

server at-
tempted to 
set an invalid 
IP address in 
the EtherNet/
IP Unit or 
built-in Ether-
Net/IP port.

Case 1:
The Unit will continue 
sending requests to 
the BOOTP server 
until there is a 
response. In the 
meantime, the Unit 
will be offline and 
unable to communi-
cate. Errors will be 
returned to all com-
munications requests. 
Data exchanges 
(refreshing) will con-
tinue with the CPU 
Unit.

Case 2:
The Unit will operate 
with the default IP 
address 
(192.168.250.node_
address).

The Unit Error 
Occurred Flag (n+10, 
bit 00), Network Error 
Occurred Flag (n+10, 
bit 01), and BOOTP 
Server Error Flag 
(n+14, bit 10) will go 
ON.

03C4

De-
tails: 
06xx

Perform one of the 
following:

• Correct  the 

BOOTP server 
settings.

• Check the com-

munications path 
(EtherNet/IP Unit 
or built-in 
EtherNet/IP port, 
cable connec-
tions, hubs, rout-
ers, and servers) 
and correct any 
problems.

An error 
occurred in 
communica-
tions with the 
STNP server.

The SNTP Server 
Error Flag (n+14, bit 
11) will turn ON.

03C4

De-
tails: 
03xx

Perform one of the 
following:

• Correct the SNTP 

server settings.

• Check the com-

munications path 
(EtherNet/IP Unit 
or built-in 
EtherNet/IP port, 
cable connec-
tions, hubs, rout-
ers, and servers) 
and correct any 
problems.