Redundant Communication; Identification; Application - Hitachi Relion 670 Series Applications Manual

Section 18
Ethernet-based communication
18.2

Redundant communication

18.2.1

Identification

Function description
IEC 62439-3 Parallel redundancy
protocol
IEC 62439-3 High-availability seamless
redundancy
Access point diagnostic for redundant
Ethernet ports
18.2.2

Application

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.
Device 1
PhyPortA
Switch A
PhyPortA
Device 3
IEC09000758 V5 EN-US
Figure 107:
270
Device 2
AP1
PhyPortB
PhyPortB
AP1
Device 4
Parallel Redundancy Protocol (PRP)
© 2017 - 2023 Hitachi Energy. All rights reserved
IEC 61850 IEC 60617
identification identification
PRP
HSR
RCHLCCH
AP1
PhyPortA PhyPortB
Switch B
PhyPortA PhyPortB
AP1
1MRK511407-UUS Rev. N
GUID-B7AE0374-0336-42B8-90AF-3AE1C79A4116 v1
ANSI/IEEE C37.2
device number
- -
- -
- -
GUID-172BA5D7-6532-4B0D-8C1D-2E02F70B4FCB v1
Phasor measurement unit RES670
Application manual