Chapter 2, Installing the adapter, Preparing for an installation – Rockwell Automation 20G PowerFlex 755 Drive Embedded EtherNet/IP Adapter User Manual
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Rockwell Automation Publication 750COM-UM001E-EN-P - October 2013
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Chapter
2
Installing the Adapter
Since the EtherNet/IP adapter is embedded on the Main Control Board in the
PowerFlex 755 drive, the only required adapter installation is setting its IP
address and connecting it to the network.
Preparing for an Installation
Before installing the embedded EtherNet/IP adapter, do the following:
•
Make sure the Ethernet switch is the correct type. A ‘managed’ switch that
supports IGMP snooping is usually recommended. An ‘unmanaged’
switch can be used instead if RSLogix 5000 software, version 18.00 or
later, is used and all devices on the network are configured for ‘unicast’
I/O. For more details, see the following documents:
–
EtherNet/IP Media Planning and Installation Manual,
ODVA publication 148
–
EtherNet/IP Network Infrastructure Guidelines,
ODVA publication 35
–
Ethernet Design Considerations Reference Manual,
publication
•
Understand IGMP Snooping/Ethernet Switches
The embedded EtherNet/IP adapter is a multicast device. In most
situations, an IGMP snooping (managed) switch is required. If more than
one or two embedded EtherNet/IP adapters are connected to the switch, a
managed switch is required—otherwise the drive may fault on a Net IO
Timeout network loss. The embedded EtherNet/IP adapter, RSLogix
5000 software version 18 or later, and a ControlLogix or CompactLogix
controller will support unicast. Unicast setup is required when adding the
drive to the I/O. When all embedded EtherNet/IP adapters are set up as
unicast devices, then an IGMP snooping (managed) switch is not needed.
Much of EtherNet/IP implicit (I/O) messaging uses IP multicast to
distribute I/O control data, which is consistent with the CIP producer/
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