Omron SYSMAC CJ1W-EIP21 Instrukcja Użytkownika Strona 133

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107
Private and Global Addresses Section 5-3
5-3-2 Using a Private Address for the EtherNet/IP Unit
Conditions for Using
Communications
Applications
When the EtherNet/IP Unit or built-in EtherNet/IP port has a private address,
communications applications can be used under the following conditions:
FINS Communications Service
The FINS communications service can be executed on the intranet
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.
Either FINS/TCP or FINS/UDP can be used for the FINS communications
service.
With FINS/UDP, all of the EtherNet/IP Unit or built-in EtherNet/IP port IP
address conversion methods can be used.
Intranet
FINS/TCP client computer
with CX-Programmer, etc.
Firewall
IP router
Ethernet (EtherNet/IP)
PLC
Communications in intranet
EtherNet/IP Unit: Private address
FINS communications,
Explicit messages
FINS communications,
Explicit messages
Internet
Intranet
IP router
Firewall
Communications in Intranet
FINS/TCP client computer
with CX-Programmer, etc.
or
CIP client computer with
Network Configurator, etc.
Ethernet (EtherNet/IP)
PLC PLC
Communications
in Intranet
EtherNet/IP Unit: Private address EtherNet/IP Unit: Private address
or
CIP client computer with
Network Configurator, etc.
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