Communication Link Options Between Pcm600 And Protection; Relays; Setting Communication Parameters - ABB RELION 620 Series Operation Manual

Section 8
Commissioning
8.4.1.1
8.4.1.2
116
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.
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.

Setting communication parameters

The IP address and the corresponding mask can be set via the LHMI for the rear port. The
front port uses a fixed IP address 192.168.0.254. The front port also uses DHCP.
Each Ethernet interface has a factory default IP address when the complete protection
relay is delivered.
Setting the front communication
To set up a standard PC with Microsoft Windows operating system for front
communication:
1. To open Network Connections, click Start, point to Settings, click Control Panel,
and then double-click Network Connections.
2. Double-click the connection that you want to configure, and then click Properties.
3. Select the TCP/IP protocol from the list of configured components using this
connection and click Properties.
1MAC456939-IB D
620 series ANSI
Operation Manual