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68
Troubleshooting with LED Indicators
Section 5-1
5-1
Troubleshooting with LED Indicators
LED Indicators
The LED Indicators on the front of the PC Link Unit indicate when an error has
occurred.
• Display
Note
A node address setting error will occur when the node address is not in the
allowed setting range (0 to 31 for single-level operation or 0 to 15 for multi-
level operation).
A node address setting error will
not
occur if the same node address is set on
two PC Link Units, but there will be data errors in the LR Area. Be sure to set
a unique address on each Unit.
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
(Communica-
tions 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
Содержание CVM1 Series
Страница 1: ...Cat No W434 E1 01 SYSMAC CVM1 CV Series CVM1 LK401 PC Link Unit This manual is PDF file only...
Страница 2: ...CVM1 LK401 PC Link Unit Operation Manual Produced July 2004...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 41: ...26 Differences from Earlier PC Link Units Section 2 6...
Страница 77: ...62 Replacement Checklists Section 3 6...
Страница 95: ...80 Link Adapter Specifications Appendix B...
Страница 101: ...86 PC Link System I O Response Time Appendix C...
Страница 103: ...88 PC Link Settings and Status Areas Appendix D...
Страница 105: ...Revision History 90...