248 Rockwell Automation Publication 520-UM001K-EN-E - August 2021
Appendix H EtherNet/IP
Ground Connections for
EtherNet/IP Networks
Connect terminal C1 to a clean ground when using a network with a star
topology. It is acceptable to ground both C1 and C2 terminals.
PowerFlex 525 Embedded Ethernet/IP Adapter
Connect terminal CS1 or CS2 to a clean ground when using a network with a
ring topology.
PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter
F
W
D
ENET LINK
EtherNet/IP
Terminal Description
C1
This terminal is tied to the RJ-45 port shield. Tie
this terminal to a clean ground in order to improve
noise immunity when using external
communication peripherals.
C2
This is the signal common for the communication
signals.
Terminals C1/C2
Terminal Description
CS1/CS2
Provides a clean ground for the communication bus
cable shields.
CS1 or CS2 should be connected to a clean ground
or PE ground on the drive.
Terminals CS1/CS2
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