Communications Communications Overview; Ethernet Network Topology - GE D90 Plus Instruction Manual

D90
Chapter 6: Communications
Communications overview

Ethernet network topology

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D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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Line Distance Protection System
Communications
This chapter outlines how to program the D90
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The D90 has one Ethernet port (port 1) on the main CPU module in slot D and two
Ethernet ports (ports 2 and 3) on the communications module in slot C. Each port supports
100Base-FX over multimode fiber and 10/100Base-TX over twisted-pair wire, with auto-
negotiation. Port 1 is intended for configuration and file retrieval and has a dedicated IP
address. Ports 2 and 3 are intended for SCADA and peer-to-peer messaging. Additionally,
there is one serial RS485 port on the rear panel.
The following protocols are available, depending on the configuration of the unit:
• Ethernet port 1 — Modbus TCP, TFTP, SNTP, HTTP
• Ethernet ports 2 and 3 — Modbus TCP, DNP 3.0, IEC 60870-5-104, IEC 61850, SNTP,
TFTP, HTTP, PRP
• RS485 port — Modbus serial
The topology shown here allows several D90
running EnerVista software or with a gateway for remote access. This allows device
configuration, monitoring, and file transfers (transient records, sequence of events, and so
on) to be carried out over Ethernet. Communications processor cards are not required and
no redundancy is provided.
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communications settings.
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devices to communicate with a computer
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