CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 129

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

IP Addresses in FINS Communications
Setting FINS/TCP
Connections
Personal computer or
EtherNet/IP Unit (client)
Local FINS node number A
Local IP address T
The FINS node number
is converted for each
connection number.
1,2,3...
1,2,3...
1,2,3...
IP address
IP address
■
■
■
(1) The connection is established.
(2) The local device (such as a personal
(3) The EtherNet/IP Unit sends notification that
(4) The internal node correspondence
(5) It then becomes possible to send
Local Device: FINS/TCP Server
Local Device: Server
Local Device: Client
computer) sends notification that its
FINS node number is A.
its FINS node number is B.
table is changed.
and receive FINS messages.
1. A request to open a connection is received in TCP/IP protocol from the re-
2. Notification is received from the remote node (i.e., the client) of the remote
3. The local device provides notification of the local FINS node address.
4. The EtherNet/IP Unit or built-in EtherNet/IP port changes the internal node
5. FINS messages can then be sent and received.
The procedure for setting FINS/TCP connections involves the items described
below. The settings are made individually for each connection (numbers 1 to
16) on the FINS/TCP Tab Page of the Edit Parameters Dialog Box of the CX-
Programmer.
1. Set the server.
2. Set IP addresses for the devices to be connected.
3. Automatic FINS node address allocation:
1. Set the client.
FINS node number transmission
FINS node number transmission
mote device (i.e., the client, either a personal computer, an EtherNet/IP
Unit or built-in EtherNet/IP port), and the connection is established.
node's FINS node address.
correspondence table (FINS node address, IP address, and TCP port
number).
If the option for protection of IP addresses is selected, set the IP addresses
for clients where connections are permitted. (This step can be omitted.)
If the client (generally a personal computer) supports FINS/TCP, and if it is
to be used without setting a FINS node address, the value set here (from
239 to 254) can be allocated to the client. The default settings should nor-
mally be used.
EtherNet/IP Unit (server) CPU Unit
Local FINS node number B
Local IP address S
Ethernet (EtherNet/IP)
Section 5-2
101