Omron CS1W-CLK12-V1 Operation Manual page 64

Component Names and Functions
Meanings of LED
Indicators
Name
RUN Green
(operating)
P/S Green
(power supply)
ERC (communica- Red
tions error)
ERH Red
(PLC error)
INS Yellow
(network participa-
tion)
SD Yellow
(send)
RD Yellow
(receive)
M/A Yellow
(data link mode)
LNK Yellow
(data link)
RING Yellow
(transmission path
format)
Note Even when the local node does not participate in the data link, the
indicator will be lit if there are manually set data links active on the
network.
For details refer to 10-1 Troubleshooting Using Indicators.
Note The INS, SD, RD, M/A, LNK, and RING LED indicators on Controller Link
Units in standby mode are not lit.
Color Status
Lit Unit operating normally or, if Communica-
tions Units are used in duplex operation, Unit
operating normally in active mode.
Flashing If Communications Units are used in duplex
operation, Unit operating normally in standby
mode.
Not lit Unit error.
Lit Backup power is being supplied.
Not lit Backup power is not being supplied.
Lit Communications error, node address setting
error, hardware error or a connection error
between the Optical Controller Link Unit and
SYSMAC LINK.
Not lit Normal operation
Lit PLC error, PLC interface error, EEPROM
error, unit number error, I/O table not set,
duplex communications setting error, or
duplex settings incomplete
Not lit No error.
Lit Unit is participating (inserted) in the network.
Not lit Unit is not participating (inserted) in the net-
work.
Lit Data transmission.
Not lit No data transmission.
Lit Data reception.
Not lit No data reception.
Data
links
active in
the net-
work.
Lit Manual
(See
note.)
Not lit Auto-
matic
Lit Data links participating.
Flashing Error in data link table.
Not lit Not in a data link or data link inactive.
Lit Token-ring mode setting (cable normal)
Flashing Token-ring mode setting (cable discon-
nected)
Not lit Token-bus mode setting
Section 3-1
Meaning
Data links not active in the net-
work.
Note:
M/A is always not lit when data
links are not active in the network.
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