Omron SYSMAC CS1W-ETN21 Operation Manual page 134

Private and Global Addresses
Intranet
Global address
IP router
Private address
Firewall
Communications Services
That Require Global
Addresses for Ethernet
Units
Intranet
Firewall
IP router
Private address
Internet
Ethernet
PLC
Private address
A global address is required for the Ethernet Unit's IP address when the fol-
lowing communications services are used over the Internet.
• FINS communications services
• File transfers
• Socket services
When mail is sent or received over the Internet, the Unit's IP address can be a
private address.
Personal computer,
CX-Programmer, etc.
Ethernet
PLC
Global address
(required)
Personal computer,
CX-Programmer, etc.
PLC
Private address
Section 5-3
Private address
Not output to Internet
Not output to Internet
Private address
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