Omron CS1W-CLK12-V1, Operation Manual

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Troubleshooting Using Indicators Section 10-1
Node Cannot Participate
in Data Link The following table describes the LNK and M/A indicators when a node can-
not participate in the data links.
Data link participation depends on the Controller Link Unit operating normally
and participating in the Network. Refer to Troubleshooting with RUN, ERC,
ERH and INS Indicators earlier in this section and check Unit operation before
using the following table.
Data Link Cannot be
Stopped Stopping the data link depends on the Controller Link Unit operating normally
and participating in the Network. Read the above explanations before
attempting to stop operation.
Indicators Probable cause Probable remedy
LNK M/A
Lit --- Data link operating normally. ---
Flashing --- There is an error in the data
link tables. When the ERH indicator is
flashing, remake and set the
data link tables.
When manual setting is used,
either data link tables have not
been created for the startup
node or there is an error in the
data link tables. Refer to 5-2-2 Manual Setting
and set data link tables for the
startup node.
When automatic setting is
used, either the data link
parameters for the startup
node have not been set or
there is an error in the data
link tables. Refer to 5-2-4 Automatic Set-
ting: Select All and set the
automatic parameters for
starting the data links.
Not lit Lit Manually set data links are
already operating on the same
Network. Stop the manually set data
links that are operating and
restart the data links.
Not lit Not lit Automatically set data links
are already operating on the
same Network. Stop the automatically set
data links that are operating
and restart the data links.
There is an error in the startup
node PLC. Refer to the PLC’s operation
manual and correct the error.
If the error reoccurs, replace
the PLC.
Indicators Probable cause Probable remedy
LNK M/A
Lit --- Data link operating normally. ---
Flashing Lit When manual setting is used,
there is an error in the data
link table. Refer to 5-2-2 Manual Setting
and remake the data link table.
Flashing Not lit When automatic setting is
used, the data link parameters
at the startup node are incor-
rect for the local node (the
data link area is out of range
for the local node.) Refer to 5-2-4 Automatic Set-
ting: Select All, reset the
parameters for the startup
node DM Area so that the
local node can participate in
the data link, and then restart
the data link.
Not lit Lit When manual setting is used,
there are no data link tables
set for the local node. Set data link tables for the
local node.
Not lit Not lit When automatic setting is
used, the startup node is not
set to participate in the data
links. Stop the data links, remake
and set the parameters in the
startup node’s DM Area, and
then restart the data link.