Omron C200HW-CLK21 ユーザーズマニュアル

Indicators 

LED indicators that display the Unit and network status.

Node address switches 

Two rotary switches. The node address of the Unit on the
Controller Link Network is set in 2-digit decimal. 
Baud rate switch 

Terminals to connect to the Controller Link Network communications
cable (twisted-pair cable). 

Terminating resistance switch 

A slide switch. Use this switch to set the terminating resistance to ON for
the nodes at both ends of the Controller Link Network. 

bit/s

k

(Refer to p. 53 and 276)

(Refer to p. 101)

(Refer to p. 101)

(Refer to p. 102)

(Refer to p. 66)

RUN 
(operating)

Green

Lit

Unit operating normally.

Not lit

Unit error.

TER 
(terminating 
resistance)

Yellow

Lit

Terminating resistance switch ON.

Not lit

Terminating resistance switch OFF.

ERC (communica-
tions error)

Red

Lit

Communications error, node address 
setting error (same address set twice), or 
hardware error.

Not lit

Normal operation

ERH 
(PLC error)

Red

Lit

PLC error, PLC interface error, or 
EEPROM error

Not lit

No error.

INS 
(network 
participation)

Yellow

Lit

Unit is participating (inserted) in the net-
work.

Not lit

Unit is not participating (inserted) in the 
network.

M/A 
(data link mode)

Yellow

Lit

Manual 
(see note)

Note: 
M/A is always not lit 
when data links are not 
active in the network.

Not lit

Automatic 

LNK 
(data link)

Yellow

Lit

Participating in data links.

Flashing

Error in data link tables.

Not lit

Not in a data link or data link inactive.

SD 
(send)

Yellow

Lit

Data transmission.

Not lit

No data transmission.

RD 
(receive)

Yellow

Lit

Data reception.

Not lit

No data reception.