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Troubleshooting with FINS Response Codes Section 14-6
22 Status error
(operating
mode dis-
agreement)
0F Cannot execute
because service is
being processed.
Socket status
area
The same socket service
is already in progress at
the specified socket num-
ber.
Use the corresponding socket
status flag in PLC memory to
be sure that socket service
has finished before starting
services again.
10 Socket not open Socket status
area
The specified socket is
not open.
Open the socket. (For TCP
sockets, wait until the connec-
tion is made.)
11 Local node busy
(send failed)
System load Lack of available space in
internal buffers
The load (traffic) on the Ether-
net Unit is too heavy. Check
your user applications.
20 FINS/TCP not con-
nected
Unit Setup Not opened due to sys-
tem settings.
Correctly set the Unit Setup,
FINS/TCP connection num-
ber, remote IP address, and
remote port number.
21 Not opened due to a
change command from
the FINS/TCP connec-
tion’s remote node.
22 Closed by remote node;
opening again.
23 Opening again because
of a reception error.
24 Opening again because
of a send error.
25 Opening again because
of an RST response in
keep-alive.
26 Opening again because
there was no response in
keep-alive.
30 Establishing connec-
tion
Command
data
A connection is already
established with the
specified remote node.
Correct the settings for the
FINS/TCP connection num-
ber, the remote IP address,
and the remote port number.
31 Cannot change con-
nection
Unit Setup
and com-
mand data
The specified connection
number is not set as a
FINS/TCP client in the
Unit Setup.
Correct the settings for the
Unit Setup, the FINS/TCP
connection number, the
remote IP address, and the
remote port number.
32 Cannot execute
because service was
interrupted
Command
data
While a remote node
change was being pro-
cessed for the specified
connection number, a
request for a change was
received and the pro-
cessing was stopped.
Correct the settings for the
FINS/TCP connection num-
ber, the remote IP address,
and the remote port number.
23 No such
Unit (Envi-
ronment
error)
05 Parameters Unit Setup IP address conversion
failed.
Check the IP address and
subnet mask in the Unit
Setup, and correct if neces-
sary.
07 Configuration error IP address
conversion in
Unit Setup
IP address conversion is
set for automatic conver-
sion only.
Check the IP address conver-
sion setting in the Unit Setup.
This error will be generated
for the READ IP ADDRESS
TABLE command only.
Main response
code
Sub response code Item to check Likely cause Corrective action
Value and
meaning
Value and meaning