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Troubleshooting Using Indicators
Section 9-1
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.
Note
Stop the data link from the node at which the LNK indicator is lit (indicating
active data links). Data links cannot be stopped from nodes which do not have
active data links.
Troubleshooting of Other Errors
To configure a network that uses a node address higher than 32, all nodes
must be CS1W-CLK21-V1, CS1W-CLK23, CJ1W-CLK21-V1, CJ1W-CLK23,
3G8F7-CLK21-V1, or 3G8F7-CLK23-E. The Wired Network 62 Node Enable
Bit in the DM Parameters Area must also be turned ON (62 nodes max.) for all
nodes. If the nodes are set differently, the network will not be configured cor-
rectly. If the settings are incorrect, the following problems will occur.
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
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
, reset the parameters for
the startup node DM Area so
that the local node can partici-
pate in the data link, and then
restart the data link.
When automatic setting is
used, the local node is not set
to participate in the data link at
the startup node.
Stop the data link, 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.
Automatic setting is used with
1:N allocations, but the device
does not support this function.
Use a Controller Link Unit that
supports automatic data link
creation with 1:N allocations.
Refer to
page 131 for details.
When a number exceeding
12,000 was set for the data
link send and receive words or
the same memory area was
set for Area 1 and Area 2
using a CS/CJ-series Control-
ler Link Unit with unit version
1.2 or later that was then
replaced with a CS/CJ-series
pre-Ver. 1.2 Controller Link
Unit.
The number of data link send
and receive words cannot
exceed 12,000 and the same
memory area cannot be set for
Area 1 and Area 2 when using
a CS/CJ-series pre-Ver. 1.2
Controller Link Unit. Either use
a CS/CJ-series Controller Link
Unit with unit version 1.2 or
later or reset the data link
tables.
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.
Summary of Contents for C200HW-CLK21
Page 3: ...iv ...
Page 9: ...x ...
Page 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Page 13: ...xiv ...
Page 19: ...xx ...
Page 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Page 69: ...44 Message Service Procedure Section 2 2 ...
Page 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Page 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 261: ...236 Response Codes Section 6 7 ...
Page 297: ...272 Message Delay Times Section 8 4 ...
Page 353: ...328 Handling Precautions Section 9 6 ...
Page 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 369: ...344 Standard Models Appendix A ...
Page 391: ...366 Using the Relay Terminal Block Appendix C ...
Page 397: ...372 Index ...
Page 401: ...376 Revision History ...