Omron CS1W-ETN21 operation manual Indicator Color Status Meaning

Nomenclature and Functions			Section 1-6
Indicator	Color	Status	Meaning
RUN	Green	Not lit	Operation stopped
			Hardware error
		Lit	Normal operation
100M	Green	Not lit	10 Mbps (10Base-T)
(Transfer speed)
		Lit	100 Mbps (100Base-TX)
ERC	Red	Not lit	Unit normal
(Ethernet Unit error)
		Lit	Node address not between 1 and 254
			A hardware (e.g., internal memory) error has occurred.
ERH	Red	Not lit	CPU Unit normal
(CPU Unit error)
		Lit	An error has occurred at the CPU Unit.
			There is an error in the I/O table, unit number, unit setup, or routing
			table settings.
		Flashing	An illegal IP address has been set. With automatic address gener-
			ation, the rightmost two digits of the IP address do not match the
			node address.
SD	Yellow	Not lit	Not sending data (ready to send)
(Send Data)
		Lit	Sending data
RD	Yellow	Not lit	Not receiving data (ready to receive)
(Receive Data)
		Lit	Receiving data
LNK	Yellow	Not lit	Link not established between hubs.
(Link status)
		Lit	Link established between hubs.
TCP	Yellow	Not lit	None of the eight TCP sockets provided for socket services is in
(TCP socket in use)			use.
		Lit	At least one of the eight TCP sockets provided for socket services
			is in use.
FTP	Yellow	Not lit	FTP server on standby.
(FTP Server Service)
		Lit	FTP server operating (one user connected).
HOST	Yellow	Not lit	Server (DNS, SMTP, POP3, or SNTP) not being used.
(Server connection sta-
		Flashing	An error has occurred in the server connection.
tus)
		Lit	The server connection is normal.

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