
Rockwell Automation Publication 1783-UM007I-EN-P - December 2017
211
Configure Switch Features
Chapter 3
Figure 27 - Parallel Redundancy Protocol (PRP) Topology
PRP provides a redundant network infrastructure. An important feature of
PRP is that the two LANs do not meet, but connect at the PRP end nodes. An
end node that is connected to both LANs is called Doubly or Dually Attached
Nodes or DANs. Both terms are fully accepted and used in the IEC standard.
DC OUTPUT
DIAG
DIAG
DC INPUT
DC INPUT
DC OUTPUT
DIAG
DIAG
DC INPUT
DC OUTPUT
DIAG
DIAG
DC INPUT
DC OUTPUT
DIAG
DIAG
LAN A (Blue)
Stratix Switch
LAN A
LAN A
LAN A
LAN A
LAN B (Green)
LAN B
LAN B
LAN B
1756-EN2TP, PRP Communication Module, Doubly Attached Node (DAN)
1756-EN2TP, PRP Communication Modules as Adapters, Doubly Attached Node (DAN)
Stratix Switch
LAN B
IMPORTANT
Never connect LAN A and LAN B directly to each other. For example, never
connect an infrastructure switch in LAN A to an infrastructure switch in
LAN B.
Also, be sure that each device in LAN A and LAN B has a unique IP address.
Summary of Contents for armorstratix 5700
Page 10: ...10 Rockwell Automation Publication 1783 UM007I EN P December 2017 Table of Contents Notes ...
Page 12: ...12 Rockwell Automation Publication 1783 UM007I EN P December 2017 Preface Notes ...
Page 72: ...72 Rockwell Automation Publication 1783 UM007I EN P December 2017 Chapter 2 Get Started Notes ...
Page 396: ...396 Rockwell Automation Publication 1783 UM007I EN P December 2017 Appendix A DataTypes Notes ...
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