Omron CVM1 Series, Руководство по эксплуатации

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Checking the PC Link’s Operating Conditions Section 4-2
4-2 Checking the PC Link’s Operating Conditions
LED Indicators
Turn ON the power supplies to all PLCs in the PC Link system and check the
status of the PC Link Units’ LED Indicators with the PLCs in PROGRAM
mode.
CVM1-LK401 Indicators
Meaning of the CVM1-LK401 LED Indicators
Name Color Status Unit status
RUN
(Run)
Green Lit The Unit is operating normally. (Lit after initial-
ization is completed.)
Not lit Unit error
ERC
(Communications
error)
Red Lit A hardware error or node address setting
error occurred. (See note.)
Flashing A link error occurred with the polling node
link, Local Unit link, or Other Unit link.
Not lit The Unit is communicating normally.
ERH
(PLC error)
Red Lit An error occurred in the PLC, such as a CPU
Unit error, PLC interface error, EEPROM
error, unit number setting error, or I/O table
setting error.
Not lit There are no errors in the CPU Unit.
LINK0
(Node 0/Polling
node link)
Yellow Lit Normal status, link established with Node 0
(polling node)
Not lit Error status, link not established with Node 0
(polling node)
THIS
(Local Unit link)
Yellow Lit Normal status, link established with local Unit
Not lit Error status, link not established with local
Unit
OTHER
(Other Unit link)
Yellow Lit Normal status, link established with other Unit
Not lit Error status, link not established with other
Unit
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER