Omron NJ Series

12 Troubleshooting
12-54
NJ-series CPU Unit Software User’s Manual (W501)
Cause and
correction
Assumed cause Correction Prevention
1. A FINS response was received
with the destination network
address (DNA) set to the local
network and the destination node
address (DA1) not set to the local
node.
Correct the IP address table settings. Make sure that the IP address table
settings are correct.
2. A FINS command or response
was received with a hub network
address specification for which
the destination network address
(DNA) was greater than or equal
to 80 hex.
Correct the FINS message at the
source so that the hub network
address specification does not spec-
ify a destination network address
(DNA) that is greater than or equal to
80 hex.
Make sure that the FINS message at
the source does not have a hub net-
work address specification that speci-
fies a destination network address
(DNA) that is greater than or equal to
80 hex.
3. There is insufficient space in the
internal buffer.
Reduce the frequency of sending
FINS messages at the source.
Keep the frequency of sending FINS
messages as low as possible.
4. A FINS command that does not
have the minimum command
length was received.
Correct the FINS command at the
source so that it has at least the mini-
mum command length.
Set the FINS commands at the
sources so that they have at least the
minimum command length.
5. A FINS command that exceeded
the maximum command length
was received.
Correct the FINS command at the
source so that it does not exceed the
maximum command length.
Set the FINS commands at the
sources so that they do not exceed
the maximum command length.
6. Sending packets failed. If the destination node is not in the
network, add it to the network.
Confirm that the destination node is in
the network.
7. FINS message routing failed
because the communications
load is too high. Or a command
that was addressed to the built-in
EtherNet/IP port was received
with the source network address
(SNA) set to 0.
Reduce the frequency of sending
FINS messages at the source. Or,
correct the source network address
(SNA) in the source FINS message.
Keep the frequency of sending FINS
messages as low as possible. Or, set
the correct source network address
(SNA) in the source FINS message.
8. A FINS response that was
addressed to the built-in Ether-
Net/IP port was received.
Correct the contents of the FINS mes-
sage at the source.
Set the FINS messages correctly.
9. A FINS response or a command
for which a response is not
required was received when the
routing tables were not regis-
tered.
Register the routing tables. Register the routing tables.
A: A FINS response or a command
for which a response is not
required was received when there
was an error in the routing tables.
Register the routing tables again. If
there is an error in the routing tables,
there will be an Illegal User Pro-
gram/Controller Configurations and
Setup (10250000 hex) error.
None
B: A FINS response or a command
for which a response is not
required was received that
exceeded the number of relay
points.
Increase the set value of the gateway
counter in the routing table at the
source.
Set the gateway counter in the routing
table at the source so that it is suit-
able for the system configuration.
C: Transmission is not possible
because the destination address
is not set in the routing tables.
Register the destination address in
the routing tables.
Register the destination address in
the routing tables.
D: Routing is not possible because
the FINS node address setting in
the Built-in EtherNet/IP Port Set-
tings is set to 0 or 255.
Set the FINS node address in the
Built-in EtherNet/IP Port Settings to
any value other than 0 or 255 from the
Sysmac Studio.
If y
ou set the lower eight bits of the IP
address in the TCP/IP Settings in the
Built-in EtherNet/IP Port Settings to 0
or 255, set the IP Address-FINS
Address Conversion Method to any
setting other than Automatic Genera-
tion.
Attached
information
Attached Information 1: Cause of Discarding Packets
1: 01 hex, 2: 02 hex, 3: 03 hex, 4: 04 hex, 5: 05 hex, 6: 06 hex, 7: 07 hex, 8: 08 hex, 9: 09 hex, A: 0A hex, B: 0B hex,
C: 0C hex, D: 0D hex
The numbers correspond to the above cause numbers.
Precautions/
Remarks
None