3-7
3 Configuration Units
NJ-series CPU Unit Hardware User’s Manual (W500)
3-1 CPU Units
3
3-1-2 Components and Functions
Built-in EtherNet/IP Port (Port 1) Indicators
Indicator Color Status Contents
NET RUN Green Lit Normal startup status.
Flashing Ethernet communications are in progress.
• Tag data link connection establishment in progress.
• IP address acquisition with BOOTP in progress.
Not lit You cannot perform Ethernet communications.
• The power supply is OFF or the CPU Unit was reset.
• A MAC address error or communications Controller error
occurred.
NET ERR Red Lit An error for which the user cannot recover operation occurred.
• A MAC address error or communications Controller error
occurred.
Flashing An error for which the user can recover operation occurred.
• An error occurred in TCP/IP communications or CIP communi-
cations.
• FTP server setting error, NTP server setting error, etc.
• Tag data link setting error, tag data link verification error, etc.
Not lit There are no Ethernet communications errors.
• The power supply is OFF or the CPU Unit was reset.
LINK/ACT Yellow Lit The link was established.
Flashing The link is established, and data communications are in progress.
Not lit A link was not established.
• The cable is not connected.
• The power supply is OFF or the CPU Unit was reset.
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