Omron CP1L-EL20DR-D, Operation Manual

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FINS Communications Section 6-5
The following settings can be made for each connection number.
For details, refer to SECTION 6 FINS Communications Service in the Ether-
net Units Operation Manual Construction of Networks (Cat. No. W420-E1).
Item Contents Default
FINS/TCP
Server/Client For each connection number, this setting specifies
the PLC for use as either a server or a client.
• When the PLC is used as a server:
The PLC opens a connection with that connection
number and waits for service requests (FINS com-
mands) from clients. Connection numbers are
used in ascending order and allocated to clients in
the order connections are made.
• When the PLC is used as a client:
The PLC establishes a connection with the server
set as the destination IP address. Once the con-
nection has been established, FINS/TCP is used
for FINS communications.
Server
Destination IP
Address • When the PLC is used as a server:
If the option is selected to use IP addresses to pro-
tect, set the IP addresses as required at clients
from which connection is permitted. If not set for
those connections, the default setting of 0.0.0.0
can be used.
• When the PLC is used as a client:
Set the IP address for the remote PLC (i.e., the
server) that is to be connected by FINS/TCP. It is
required that an IP address be set for the remote
PLC.
0.0.0.0
Auto allocated
FINS node If the client (normally a personal computer) applica-
tion supports FINS/TCP, and if FINS node
addresses are not fixed, the client will take 0 as its
node address. Then, when a FINS command
arrives, the number set here (from 251 to 253) will
automatically be allocated as the client’s FINS node
address. From 251 to
253, for con-
nection Nos.
1 to 3
keep-alive For each connection number, set whether or not the
remote node connection check function is to be
used for the FINS/TCP server and client.
If the keep-alive box is checked here, then, when
the remote node goes without responding for longer
than the monitor time set in the Setup, the connec-
tion will be terminated. If a remote node turns OFF
without warning, the connection will remain open
indefinitely, so this option should be used whenever
possible.
Use