Schweitzer Engineering Laboratories, Inc.
SEL-487B Data Sheet
15
Figure 25
Integral Communication Provides Secure Protection, Monitoring, and Control as Well as Terminal Access to
Both Relays Through One Connection
Communications Features
The SEL-487B offers the following communications fea-
tures:
➤
Four independent EIA-232 serial ports
➤
Full access to event history, relay status, and meter
information from the communications ports
➤
Settings and group switching password control
➤
SCADA interface capability including FTP, IEC
61850, and DNP3 LAN/WAN (via optional inter-
nally mounted Ethernet card), and DNP3 Level 2
Slave (via serial port)
The relay does not require special communications
software. You need only ASCII terminals, printing
terminals, or a computer supplied with terminal
emulation and a serial communications port. Table 7
provides a synopsis of the communications protocols in
the SEL-487B.
Ethernet Card
The SEL-487B provides Ethernet communications capa-
bilities with the optional Ethernet card. This card mounts
directly in the relay. Use Telnet applications for easy ter-
minal communication with SEL relays and other devices.
Transfer data at high speeds (10 Mbps or 100 Mbps) for
fast file uploads. The Ethernet card communicates using
FTP applications for easy and fast file transfers. Choose
Ethernet connection media options for primary and
stand-by connections:
➤
10/100BASE-T Twisted Pair Network
➤
100BASE-FX Fiber-Optic Network
Communicate using IEC 61850 Logical Nodes and
GOOSE Messages, or DNP3 LAN/WAN.
Telnet and FTP
Order the SEL-487B with Ethernet communications and
use the built-in Telnet and File Transfer Protocol (FTP)
that come standard with Ethernet to enhance relay
communications sessions. Use Telnet with the ASCII
interface to access relay settings, and metering and event
reports remotely. Use FTP to transfer settings files to and
from the relay via the high-speed Ethernet port.
DNP3 LAN/WAN
The DNP3 LAN/WAN option provides the SEL-487B
with DNP3 Level 2 slave functionality over Ethernet.
You can configure custom DNP3 data maps for use with
specific DNP3 masters.
Precision Time Protocol (PTP)
An Ethernet card option with Ports 5A and 5B populated
provides the ability to accept IEEE 1588 Precision Time
Protocol, version 2 (PTPv2) for data time
synchronization. Optional PTP support includes both the
Default and Power System (C37.238-2011) PTP Profiles.
Precedence Con-
trol
( )
Allows up to 14 sets of parentheses.
Comment
#
Provides for easy documentation of control and protection logic.
Table 6
Expanded SEL
OGIC
Control Equation Operators
(Sheet 2 of 2)
Operator Type
Operators
Comments
Fiber-Optic Cable
TX
RX
TX
RX
SEL-2815
SEL-2815
Station A
Station B
Digital, Analog, and Virtual Terminal Data
Network
SEL-487B
SEL-487B
Other
Relays
Other
Relays
•
•
•
•
•
•
