Schweitzer Engineering Laboratories SEL-351A, Manual

Page: 411 / 666

Date Code 20080213
Instruction Manual SEL-351A Relay
Section 10
Serial Port Communications
and Commands
Overview
Various serial ports are available in the SEL-351A Relay:
Connect the serial port to a computer serial port for local communications or
to a modem for remote communications. Other devices useful for
communications include the SEL PRTU, SEL-2032, SEL-2030, and
SEL-2020 Communications Processors, and SEL DTA2 Display/Transducer
Adapter. You can use a variety of terminal emulation programs on your
personal computer to communicate with the relay. For the best display, use
VT-100 terminal emulation or the closest variation.
The default settings for all serial ports are:
➤
Baud Rate = 2400
➤
Data Bits = 8
➤
Parity = N
➤
Stop Bits = 1
To change the port settings, use the SET P command (see Section 9: Setting
the Relay ) or the front-panel
{SET}
pushbutton.
Table 10.1 SEL-351A Available Serial Ports
Rear Panel Front Panel
Reference
Serial PORT 1
(EIA-485,
4-wire)
Serial PORT 2
(EIA-232)
Serial PORT 3
(EIA-232)
Serial PORT F
(EIA-232)
Figure 1.2 ,
Figure 2.2 ,
Figure 2.3 ,
Figure 2.4 ,
Figure 2.5 ,
Figure 2.6
X X X X
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