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Chapter 16 - Communications
DS Agile gateways
H600 switch
Ethernet
Up to
6 links
C264
RS485
Bay level
Type 1
E01017
Figure 151: Application of Dual Homing Star at substation level
5.6
REDUNDANT ETHERNET CONFIGURATION
The Redundant Ethernet Board (REB) incorporates an integrated Ethernet switch. Because of this, it has two Media
Access Control (MAC) addresses; one for the IED in which it is fitted (the NIC MAC address, or IED MAC address), and
one for the embedded Ethernet switch (the switch MAC address). Each MAC address is associated with an Internet
Protocol (IP) address which needs setting. To configure the REB you will need to set the IP addresses associated
with the embedded Ethernet switch on the REB and the IED to which it is fitted.
An IP address is a logical address assigned to a device that uses the Internet Protocol (IP) for communication with
other devices. IP addresses are represented using Decimal Dot Notation where four sets of decimal numbers are
separated by dots as follows:
XXX.XXX.XXX.XXX
For example: 10.86.254.85
An IP address in a network is usually associated with access to a limited part of the internet known as a subnet
and defined by a subnet mask. The subnet mask defines which network the device belongs to. A subnet mask has
the same form as an IP address and, like an IP address, is usually assigned by the system designer.
The IED and the embedded REB switch each have their own IP addresses. The following diagram shows how the IP
addresses relate to each other and outlines the mechanisms for setting them. In the figure the IED is described by
the address IP1 and the embedded REB switch is described by the address IP2.
326
MiCOM H382
C264 *
H368
Ethernet
Up to
4 links
Bay level
Type 2
TX copper link
FX optical fibre Ethernet
RS485, RS422
For PRP this is SRP, for DHP this is SWD
*
** For PRP this is PRP REB, for DHP this is DHP REB
P64x
SCADA or PACiS OI
H600 switch
Px4x **
Bay level
Type 3
P64x-TM-EN-1.3
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Troubleshooting
