Omron SYSMAC CS1W-ETN21 Operation Manual page 253

Troubleshooting Procedures
Main code Sub-code
03: Communi- 01: Communica-
cations con- tions controller
troller error error
02: CPU Unit
error
04: Unit number
setting error
04: Not exe- 01: Unsupported
cutable command
(Service not
supported.)
05: Routing 01: Routing table
error setting error
02: Routing
tables not regis-
tered
03: Routing table
error
04: Too many
relays
10: Com- 01: Command
mand format too long
error
02: Command
too short
03: Element-data
mismatch
05: Header
parameter error
228
Check point
ERC indicator on Error occurred in the communi-
the Controller cations controller, ERC indica-
tor is lit.
Remote CPU Unit CPU Unit error occurred in the
indicators PLC at the remote node.
Unit number Unit number setting error
Command code An undefined command has
been used.
FINS header A short frame (4 bytes) is being
frame length used for the FINS header
frame.
Routing tables Remote node is not set in the
routing tables.
Routing tables Routing tables aren't registered
completely.
Routing tables Routing table error
Network configu- The maximum number of relay
ration nodes (2) was exceeded in the
command.
Command data The command is longer than
the max. permissible length.
Command data The command is shorter than
min. permissible length.
Command data The designated number of data
items differs from the actual
number in the command data.
Command data Data for another node on the
same network was received
from the network.
An attempt was made to send
response data for a broadcast
address.
Probable cause
Take corrective action, referring
to troubleshooting procedures in
this section.
Check CPU Unit indicators at the
remote node and clear the error
in the CPU Unit (refer to the PC's
operation manuals)
Make sure the unit number is
within the specified range and
that the same unit number is not
used twice in the same network.
Check the command code and
be sure the command is sup-
ported by the Unit to which you
are sending it.
Check the FINS header frame
length. The Ethernet Unit does
not support short headers.
Set the destination address in
the routing tables.
Set routing tables at the local
node, remote node, and any
relay nodes.
Set the routing tables correctly.
Redesign the network or recon-
sider the routing table to reduce
the number of relay nodes in the
command. Communications are
possible on three network levels,
including the local network.
Check the command format of
the command and set it correctly.
Be sure broadcast transmissions
don't exceed 1,473 bytes.
Check the command format of
the command and set it correctly.
Check the number of items and
the data, and make sure that
they agree.
Check the header parameters in
the command data and be sure
the correct command format is
being used.
Section 8-4
Remedy