Self-Healing Ethernet Ring - ABB RELION 615 Series Applications Manual

1MAC109016-MB C
2.7.1
REF615 ANSI
Application Manual
Table 6: TCP and UDP ports used for different services
Service
File Transfer Protocol (FTP and FTPS)
IEC 61850
Web Server HTTP
Web Server HTTPS
Simple Network Time Protocol (SNTP)
Modbus TCP
DNP TCP
The IEC 61850 communication implementation supports all monitoring and control
functions. Additionally, parameter setting and DFR records can be accessed using the IEC
61850 protocol. Oscillographic files are available to any Ethernet-based application in the
standard COMTRADE format. The protection relay can send and receive binary signals
from other devices (so-called horizontal communication) using the IEC 61850-8-1
GOOSE profile, where the highest performance class with a total transmission time of 3
ms is supported. Furthermore, the protection relay supports sending and receiving of
analog values using GOOSE messaging. The protection relay meets the GOOSE
performance requirements for tripping applications in distribution substations, as defined
by the IEC 61850 standard. The protection relay can simultaneously report events to five
different clients on the station bus.
The protection relay can support five simultaneous clients. If PCM600 reserves one client
connection, only four client connections are left, for example, for IEC 61850 and Modbus.
All communication connectors, except for the front port connector, are placed on
integrated optional communication modules. The protection relay can be connected to
Ethernet-based communication systems via the RJ-45 connector (100Base-TX) or the
fiber optic LC connector (100Base-FX). An optional serial interface is available for
RS-232/RS-485 communication.

Self-healing Ethernet ring

For the correct operation of self-healing loop topology, it is essential that the external
switches in the network support the RSTP protocol and that it is enabled in the switches.
Otherwise, connecting the loop topology can cause problems to the network. The
protection relay itself does not support link-down detection or RSTP. The ring recovery
process is based on the aging of the MAC addresses, and the link-up/link-down events can
cause temporary breaks in communication. For a better performance of the self-healing
loop, it is recommended that the external switch furthest from the protection relay loop is
assigned as the root switch (bridge priority = 0) and the bridge priority increases towards
the protection relay loop. The end links of the protection relay loop can be attached to the
REF615 overview
Port
20, 21
102
80
443
123
502
20000
Section 2
27