Fins Communications Problems (Send(090)/Recv(098)/Cmnd(490)) - Omron CJ1W-ETN21 - 04-2009 Operation Manual

Troubleshooting Procedures
8-4-2 FINS Communications Problems (SEND(090)/RECV(098)/
CMND(490))
FINS Communications Problems
Refer to 8-4-7
Troubleshooting with
Response Codes and
remove any causes of the
problem discovered there
before proceeding with this
procedure.
Is the control data
for the instruction set
incorrectly?
N
Is a CMND(194)
Y
instruction being addressed
to the local node, e.g. for
socket services?
N
Are different UDP port
numbers set for FINS
communications for both
the local node and the
remote node?
N
Are the local and remote
nodes both on the same
network, i.e. do they have the
same network number in their
IP addresses?
Y
Set the IP address of the remote
node in the IP address table or use
automatic address conversion.
Are you attempting to
communicate with a PLC on
another network?
Go to Network
Connection Problems
E
214
occurred.
Make sure that the FINS network address is not set to 0
Y
for the Ethernet Unit and check the network address,
node number and unit address.
Set the same port number for both nodes.
Y
Is the IP address
N
of the remote node missing from
the IP address table?
N
Is the IP address
of the remote node
missing from the IP
router table?
N
Are the FINS network
addresses of the local and
remote nodes different?
N
Are you attempting
a broadcast transmission?
N
Are the routing
tables set improperly?
Y
N D
IP routing must be used if the net ID of the IP address of the
local node and remote node. Set the IP address of the remote
Y
node in the local IP address table. (Note: Use of the IP address
table must be set in the mode settings for the IP address table to
be effective.)
(Note: The automatic generation setting cannot be used alone.)
Set the network number of the remote node in the IP
Y
router table.
Y
Set both nodes to the same FINS network address.
Do not attempt to broadcast to a node with a different
Y
network number. You can broadcast only to nodes on the
same IP network.
Set routing tables at the local node, target node, and any
Y
relay nodes.
Section 8-4