Date Code 20050919
Instruction Manual
SEL-387-0, -5, -6 Relay
Section 7
Serial Port
Communications and Commands
Overview
The SEL-387 Relay is equipped with four serial ports:
➤
One EIA-232 port on the front
➤
Two EIA-232 ports on the rear
➤
One EIA-485 port on the rear
Establish communication by connecting a terminal to one of the serial ports
with the appropriate cable. Connect computers, modems, protocol converters,
printers, an SEL-2032, an SEL-2030, or an SEL-2020 Communications
Processor, an SEL-2885, a SCADA serial port, and/or RTUs for local or
remote communications.
Use one of the SEL protocols for communication. The SEL ASCII commands
and structure are defined in detail in this section. Other SEL protocols used for
interfacing other intelligent electronic devices for automated communication
are described in detail in the appendices.
Содержание SEL-387-0
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