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Rockwell Automation Publication 1783-UM007I-EN-P - December 2017
Chapter 3
Configure Switch Features
Parallel Redundancy
Protocol (PRP)
PRP is available on Stratix 5400 and 5410 switches. PRP offers alternative
network topologies for interconnecting EtherNet/IP devices. PRP is an
international standard that is described in
. PRP technology
builds redundancy into the end devices so that network infrastructure can be
duplicated using standard components, such as managed and unmanaged
switches.
describes terms to know when you configure PRP.
illustrates the simplest design of the PRP network topology. This
topology is the same as a star network configuration, but adds PRP
functionality by adding a separate, second LAN and replacing the end nodes
with PRP devices. In this example, the switches connected to LAN A and
LAN B are standard switches that do not implement RedBox functionality.
Table 79 - PRP Terms
Term
Description
Doubly or Dually Attached Node,
which implements PRP (DAN)
End-device with PRP functionality that is connected to each of the two
independent LANs.
Single Attached Node (SAN)
Device with a network interface that is connected to one of the two LANs.
Redundancy Box (RedBox)
Device that connects one or more SANs to both LANs. Stratix 5400 and 5410
switches implement RedBox functionality.
Virtual DAN (VDAN)
A SAN connected to both LANs through a RedBox. A node behind a RedBox
appears to other nodes as a DAN.
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Страница 10: ...10 Rockwell Automation Publication 1783 UM007I EN P December 2017 Table of Contents Notes ...
Страница 12: ...12 Rockwell Automation Publication 1783 UM007I EN P December 2017 Preface Notes ...
Страница 72: ...72 Rockwell Automation Publication 1783 UM007I EN P December 2017 Chapter 2 Get Started Notes ...
Страница 148: ...148 Rockwell Automation Publication 1783 UM007I EN P December 2017 Chapter 3 Configure Switch Features ...
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Страница 396: ...396 Rockwell Automation Publication 1783 UM007I EN P December 2017 Appendix A DataTypes Notes ...
Страница 404: ...404 Rockwell Automation Publication 1783 UM007I EN P December 2017 Appendix B Port Assignments for CIP Data Notes ...
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