Indicator
Col
or
Status Operating status
NET ERR
--- Not lit
There are no Ethernet communications errors.
• The power supply is OFF or the Controller is reset.
Re
d
Flash-
ing
A user-recoverable error is occurring.
• An error is occurring in TCP/IP communications or CIP communications.
• FTP Server Setting Error
, NTP Server Setting Error, etc.
• Tag Data Link Setting Error, Tag Data Link Verification Error, etc.
• The same IP address is assigned to more than one node.
Lit
A user-non-recoverable error is occurring.
• A MAC address error or communications Controller error is occurring.
LINK/ACT
--- Not lit
The link is not established.
• The cable is not connected.
• The power supply is OFF or the Controller is reset.
Yel
low
Flash-
ing
Data communications in progress after establishing the link.
Lit Link established.
Additional Information
When the built-in EtherNet/IP port is set to be disabled, all the indicators are turned OFF.
Refer to 5-1 TCP/IP Settings Display on page 5-2
for details on the settings of a built-in
EtherNet/IP port.
1 Introduction
1-18
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
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