CV500ETN01 Omron, CV500ETN01 Datasheet - Page 132

• Manufacturer Part Number: CV500ETN01
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500ETN01

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5-2-5
5-3
5-3-1
Private and Global Addresses
FINS/UDP
FINS/TCP
Communi-
method
cations
Private and Global Addresses
Pairing IP Addresses and FINS Node Addresses
Private and Global Addresses
By pairing FINS
node addresses with
IP addresses in
Ethernet
By automatic conver-
sion of FINS node
addresses at Ether-
net Unit and remote
node (and then
sending and receiv-
ing data)
Method of pairing
of IP addresses
and FINS node
addresses
The following table shows the methods for pairing IP address and FINS node
addresses, and the relation between fixed and variable address, for both
FINS/UDP and FINS/TCP.
There are two kinds of IP addresses, private and global.
Generally, as shown below, global addresses in the intranet are allocated only
to IP routers (such as broadband routers) interfacing with the Internet. All
other nodes in the intranet, including the Ethernet Unit, are allocated private
addresses.
Programmable Terminal
Open Network Controller (ONC)
IP address
conversion
Automatic
IP address determination
• Global addresses: These are IP addresses that connect directly to the
• Private addresses: These are IP addresses for Intranet (LAN) use, and
Automatic gen-
eration method
(static)
Automatic gen-
eration method
(dynamic)
IP address table
method
Combined
method
Connection
method (auto-
matic FINS
node address
conversion)
Product
Internet. Allocated by application to NIC, each
address is unique in the world, and as many as 4.3
million can be allocated worldwide.
cannot connect directly to the Internet. Frames that
include private IP addresses are restricted by the
router from being sent outside the LAN.
Fixed
Fixed
Fixed
Fixed
Fixed or
can be allo-
cated auto-
matically
when not
determined.
FINS node
address
computer of PLC)
Client (personal
NS Series
---
Model/Series/
Version
Fixed
Fixed or
variable
Fixed or
variable
Fixed or
variable
Fixed or
variable
IP address FINS node
No: Set manually. FINS
communications are not
possible with personal
computers set automati-
cally by DHCP.
Fixed
Fixed
Fixed
Fixed
Fixed
address
Supports combined
Server (PLC)
method?
Section 5-3
Fixed
Fixed
Fixed
Fixed
Fixed
IP address
107