SEL-487E-3, -4 Data Sheet Schweitzer Engineering Laboratories, Inc.
12
Advanced Display Points
Create custom screens showing metering values, special
text messages, or a mix of analog and status information.
Figure 20 shows an example of how you can use display
points to show circuit breaker information and current
metering. You can create as many as 96 display points.
All display points occupy only one line on the display at
all times. The height of the line is programmable as either
single or double, as shown in Figure 20. These screens
become part of the autoscrolling display when the front
panel times out.
Communications Features
See Specifications on page 25 for specific supported protocols.
The relay offers the following communications features:
➤ Four independent EIA-232 serial ports.
➤ Access to event history, relay status, and meter
information from the communications ports.
➤ Password-controlled settings management and
automation features.
➤ SCADA interface capability, including FTP,
IEC 61850, DNP3 LAN/WAN (via Ethernet), and
DNP3 (via serial port). The relay does not require
special communications software. You only need
ASCII terminals, printing terminals, or a computer
supplied with terminal emulation and a serial
communications port.
➤ Synchrophasor data at 60 message-per-second data
format.
Ethernet Card
Use popular Telnet applications for easy terminal com-
munications with SEL relays and other devices. Transfer
data at high speeds for fast file uploads. The Ethernet
card communicates using FTP applications for easy and
fast file transfers.
Communicate with SCADA by DNP3 and other substa-
tion IEDs by using IEC 61850 Manufacturing Message
Specification (MMS) and GOOSE messaging.
Choose Ethernet connection media options for primary
and standby connections:
➤ 10/100BASE-T twisted pair network
➤ 100BASE FX fiber-optic network
Figure 19 Sample Alarm Points Screen
*Unauthorized Access
*LOP Asserted
*SF6 Low Bk1
ALARM POINTS
Press to acknldge
Figure 20 Sample Display Points Screen
Circuit Breaker 1
--Closed--
DISPLAY POINTS
Circuit BK1 SF6 Gas
--Alarm--
Circuit Breaker 2
A PH= 119.6 A pri
SF6 ALARM
Figure 21 System Functional Overview
Automation
Over Ethernet:
Two Ethernet Ports
10/100BASE-T
100BASE-FX
To Remote SEL Relay
Using M
IRRORED BITS
Spare
Front Port Local
Operator or
Engineering
Access
IEC 61850 or
DNP LAN/WAN
Communications
Processor
Serial Communication:
Three Rear EIA-232 Ports
One Front EIA-232 Port
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