Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 344)

344 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 6 Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
Advantages/Disadvantages
The advantages of a ring network include the following:
• Simple installation
• Resilience to a single point of failure (cable break or device failure)
• Fast recover time from a single point of failure
The primary disadvantage of a ring topology is an additional setup (for example,
active ring supervisor) as compared to a linear or star network topology.
Linear/Star Topology
Network switches can be added to the end of the line, creating a linear/star
topology. Ethernet devices that do not have embedded switch technology can be
connected in a star topology off of the switch.
It is recommended that a managed switch with a transparent and/or boundary
clock, plus QoS and IGMP protocol support be used for this Network topology.
Although the ControlLogix controller is illustrated, the CompactLogix
controller could also be used.
Programming Software
1756-EN2T
or
1756-ENxTR
Stratix 8000
PowerFlex 755 PowerFlex 755 PowerFlex 755 PowerFlex 755
1585J-M8CBJM-x
EtherNet (shielded) Cable
ControlLogix
Other EtherNet/IP
Compatible Devices