Cvm1 And Cv-Series Controller Link Units - Omron SYSMAC CS1W-RPT01 Operation Manual

Troubleshooting Using Indicators
Data Link Cannot be
Stopped
9-1-3

CVM1 and CV-series Controller Link Units

Troubleshooting with RUN, ERC, ERH and INS Indicators
Indicators
LNK M/A
Lit ---
Flashing Lit
Flashing Not lit
Not lit Lit
Not lit Not lit
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.
The RUN, ERC, ERH and INS indicators can be used to check whether Con-
troller Link Unit startup and Network participation are operating normally.
Note Be sure to turn off the power to the PLC before performing any of the follow-
ing.
• Disconnecting the Unit or connectors.
• Securing Units or connectors.
Probable cause
Data link operating normally.
When manual setting is used,
there is an error in the data link
table.
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.)
Automatic setting is used with
1:N allocations, but the device
does not support this function.
When manual setting is used,
there are no data link tables
set for the local node.
When automatic setting is
used, the startup node is not
set to participate in the data
links.
CLK21
RUN TER
ERC ERH
M/A
INS LNK
SD RD
RUN: Operating
ERC: Communications error
INS: Network participation
LNK: Data link
M/A: Data link mode
Section 9-1
Probable remedy
---
Refer to 5-2-2 Manual Setting
and remake the data link table.
Refer to 5-2-4 Automatic Set-
ting, 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.
Use a Controller Link Unit that
supports automatic data link
creation with 1:N allocations.
Refer to Automatic Setting on
page 131 for details.
Set data link tables for the
local node.
Stop the data links, remake
and set the parameters in the
startup node's DM Area, and
then restart the data link.
285