Omron CS1W-ETN21 User Manual
Page 249
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Troubleshooting with Response Codes
Section 8-5
03: Communi-
cations con-
troller error
01: Communica-
tions controller
error
ERC indicator on
the Controller
Error occurred in the communi-
cations controller, ERC indica-
tor is lit.
Take corrective action, referring
to troubleshooting procedures in
this section.
02: CPU Unit
error
Remote CPU Unit
indicators
CPU Unit error occurred in the
PLC at the remote node.
Check CPU Unit indicators at the
remote node and clear the error
in the CPU Unit (refer to the PC’s
operation manuals)
04: Unit number
setting error
Unit number
Unit number setting error
Make sure the unit number is
within the specified range and
that the same unit number is not
used twice in the same network.
04: Not exe-
cutable
(Service not
supported.)
01: Unsupported
command
Command code
An undefined command has
been used.
Check the command code and
be sure the command is sup-
ported by the Unit to which you
are sending it.
FINS header
frame length
A short frame (4 bytes) is being
used for the FINS header
frame.
Check the FINS header frame
length. The Ethernet Unit does
not support short headers.
05: Routing
error
01: Routing table
setting error
Routing tables
Remote node is not set in the
routing tables.
Set the destination address in
the routing tables.
02: Routing
tables not regis-
tered
Routing tables
Routing tables aren’t registered
completely.
Set routing tables at the local
node, remote node, and any
relay nodes.
03: Routing table
error
Routing tables
Routing table error
Set the routing tables correctly.
04: Too many
relays
Network configu-
ration
The maximum number of relay
nodes (2) was exceeded in the
command.
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.
10: Com-
mand format
error
01: Command
too long
Command data
The command is longer than
the max. permissible length.
Check the command format of
the command and set it correctly.
Be sure broadcast transmissions
don’t exceed 1,473 bytes.
02: Command
too short
Command data
The command is shorter than
min. permissible length.
Check the command format of
the command and set it correctly.
03: Element-data
mismatch
Command data
The designated number of data
items differs from the actual
number in the command data.
Check the number of items and
the data, and make sure that
they agree.
05: Header
parameter error
Command data
Data for another node on the
same network was received
from the network.
Check the header parameters in
the command data and be sure
the correct command format is
being used.
An attempt was made to send
response data for a broadcast
address.
Main code
Sub-code
Check point
Probable cause
Remedy