Communication Settings - ABB RELION REC615 Operation Manual

Section 8
Commissioning
8.4.2
118
LAN or WAN network
In TCP/IP networking, a LAN is often but not always implemented as a single IP
subnet. A router connects LANs to a WAN. In IP networking, the router maintains
both a LAN address and a WAN address. Design considerations for computer
networks cover a wide range of topics including layout, capacity planning, and
security. To some extent, the network configuration also depends on user preferences.

Communication settings

The protection relay is provided with an RJ-45 front port on the LHMI. This connector
is mainly used for configuration and setting purposes. The rear port IP address and the
corresponding subnet masks can be set via the LHMI. The front port uses a fixed IP
address 192.168.0.254, and it also provides DHCP server to assign an IP address for
the connected computer. The rear Ethernet interface has a factory default IP address
192.168.2.10 when the complete protection relay is delivered.
Different communication ports are available via optional communication modules.
Ethernet RJ-45 and optical Ethernet LC are the two rear port Ethernet communication
options. Rear port Ethernet is intended for station bus communication.
Communication protocols used via Ethernet ports are IEC 61850-8-1, IEC 61850-9-2
LE, DNP3 TCP/IP and Modbus TCP/IP. Optical ST-type glass fiber serial and
RS-485/RS-232 twisted pair can also be used for rear port communication. Protocols
available for serial communication are Modbus RTU/Modbus ASCII, DNP3 and IEC
60870-5-101/IEC 60870-5-104.
If the protocol does not operate as expected, check that other serial
protocols are not using the COM port.
Use the correct Ethernet connectors in the protection relay with
redundant communication protocols like HSR and PRP. protection
relays with HSR/PRP support have three Ethernet connectors and
redundant Ethernet ports are marked as LAN A and LAN B. The third
Ethernet port without any LAN marking works as an interlink port.
Thus, an additional redundancy box is not needed. For example,
laptops with PCM600 must be connected via a redundancy box to
access a protection relay which is part of the HSR network.
The redundant communication module has three operation modes:
"Normal", "HSR" and "PRP". The operation mode can be changed
from communication settings.
1MRS758754 B
REC615 and RER615
Operation Manual