Omron CVM1-CLK21, Operation Manual

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Component Names and Functions Section 3-1
Wired Unit Indicators
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 .
Name Color Status Meaning
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
(PC error) Red Lit PC error, PC 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.