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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.
Содержание CJ2H-CPU6 - REV 02-2010
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Страница 38: ...12 Network Configurator Overview Section 1 5...
Страница 58: ...32 Selecting the Network Devices Section 2 3...
Страница 116: ...90 Auxiliary Area Data Section 4 5...
Страница 222: ...196 Message Communications Errors Section 7 6...
Страница 364: ...338 Using the Backup Tool Section 13 3...
Страница 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Страница 404: ...378 Ethernet Network Parameters Appendix B...
Страница 406: ...380 TCP Status Transitions Appendix C...
Страница 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Страница 460: ...434 Index...
Страница 462: ...436 Revision History...
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