CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 135

• 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

Private and Global Addresses
5-3-2
Conditions for Using
Communications
Applications
Intranet
IP router
Firewall
Using a Private Address for the EtherNet/IP Unit
EtherNet/IP Unit: Private address
■
Intranet
FINS Communications Service
When the EtherNet/IP Unit or built-in EtherNet/IP port has a private address,
communications applications can be used under the following conditions:
• The FINS communications service can be executed on the intranet
• Either FINS/TCP or FINS/UDP can be used for the FINS communications
• With FINS/UDP, all of the EtherNet/IP Unit or built-in EtherNet/IP port IP
between EtherNet/IP Units and built-in EtherNet/IP ports with private
addresses only.
A device such as a personal computer (with a FINS application, including
the CX-Programmer) cannot connect online and communicate over the
Internet with an EtherNet/IP Unit or built-in EtherNet/IP port that has a pri-
vate address. FINS communications are also not possible over the Inter-
net between EtherNet/IP Units and or built-in EtherNet/IP ports with
private addresses.
service.
address conversion methods can be used.
IP router
Firewall
Ethernet (EtherNet/IP)
Communications
in Intranet
PLC
Internet
Communications in Intranet
EtherNet/IP Unit: Private address
EtherNet/IP Unit: Private address
Communications in intranet
PLC
FINS/TCP client computer
with CX-Programmer, etc.
or
CIP client computer with
Network Configurator, etc.
FINS/TCP client computer
with CX-Programmer, etc.
or
CIP client computer with
Network Configurator, etc.
Ethernet (EtherNet/IP)
PLC
FINS communications,
Explicit messages
FINS communications,
Explicit messages
Section 5-3
107