8.4 Setting protection relay and communication
8.4.1 Setting the communication between protection relays and
PCM600
The communication between the protection relay and PCM600 is independent of the
used communication protocol within the substation or to the NCC. It can be seen as a
second channel for communication.
The media is always Ethernet and communication is based on TCP/IP.
Each protection relay has an Ethernet front connector for PCM600 access. Depending
on the station concept and the used station protocol, additional Ethernet interfaces
may be available on the rear side of the protection relay. All Ethernet interfaces can be
used to connect PCM600.
When an Ethernet based station protocol is used, the PCM600 communication can use
the same Ethernet port and IP address. The protection relay is able to separate the
information belonging to the PCM600 dialog.
To configure the physical connection and the IP addresses:
1. Set up or get the IP addresses of the protection relays.
2. Set up the PC for a direct link or connect the PC or workstation to the network.
3. Configure the IP addresses in the PCM600 project for each protection relay.
The addresses are used for communication between protection relays and
PCM600.
8.4.1.1 Communication link options between PCM600 and protection relays
Two options are available for the connection of PCM600 to the protection relay.
• Direct point to point link between PCM600 and the protection relay
• Indirect link via a station LAN or from remote via a network
Point to point link
The protection relay is provided with an RJ-45 connector on the LHMI. The front
communication port is mainly used for configuration and setting purposes. The front
communication port should not be connected to any Ethernet network.
The protection relay has a DHCP server for the front interface. The DHCP server
assigns an IP address to the computer connected to the front interface. The computer's
LAN interface has to be configured to obtain the IP address automatically.
1MRS758754 B Section 8
Commissioning
REC615 and RER615 117
Operation Manual
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