D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 91
D90
Plus
Line Distance Protection System
Chapter 6: Communications
Communicatio ns
This chapter outlines how to program the D90
Plus
communications settings.
Communications overview
The D90
Plus
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
Ethernet network topology
The topology shown here allows several D90
Plus
devices to communicate with a computer
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.
To Next Page
Loading...
