Ip Addressing; Figure 20: Ra24 Direct Connection; Figure 21: Ra24 Iec61850 Station Lan - Siemens 7XG3124 ReyArc24 Technical Manual

Chapter 1) 7XG3124 Installation Guide
The RA24 IED employs IEC61850 Goose messaging to convey the operation of ARC Fault Sensors
and may be used with one or many subscribing IEDs to deploy ARC Fault protection schemes.
The simplest application topology is to connect a single RA24 directly with a single IED using a
suitable crossover connection :

Figure 20: RA24 Direct Connection

Alternatively the RA24 or many RA24 Arc Fault Monitors may be connected to a Station Bus Lan as
shown below :

Figure 21: RA24 IEC61850 Station LAN

2.2

IP Addressing

The RA24 IED will come preconfigured from the factory with the IP address 192.168.0.220. The
default IP address may be used in a web browser session to undertake relay configuration. Full details
of relay configuration are described in subsequent sections of the user guide.
Reconfiguration of the RA24 IP address may be required according to the IP addressing defined in
the IEC61850 substation configuration, any subsequent web browser sessions will need to utilise the
reconfigured IP address.
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