ABB RER670 - Application

17.2.2 Application
GUID-172BA5D7-6532-4B0D-8C1D-2E02F70B4FCB v1
Dynamic access point diagnostic (RCHLCCH) is used to supervise and assure
redundant Ethernet communication over two channels. This will secure data
transfer even though one communication channel might not be available for some
reason
Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy
(HSR) provides redundant communication over station bus running the available
communication protocols. The redundant communication uses two Ethernet ports.
IEC09000758-4-en.vsd
Switch A
AP1
PhyPortB
PhyPortA
AP1
PhyPortA
PhyPortB
AP1
PhyPortB
PhyPortA
AP1
PhyPortA
PhyPortB
Switch B
Device 1
Device 2
Device 3
Device 4
IEC09000758 V4 EN-US
Figure 169: Parallel Redundancy Protocol (PRP)
1MRK 506 375-UEN A Section 17
Ethernet-based communication
Railway application RER670 2.2 IEC 417
Application manual