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Omron CS1W-ETN21 User Manual

Page 249

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224

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