Communications
12 SEL-351P Quick-Start Installation and User's Guide (Portuguese)
COMMUNICATIONS
Topics covered in this section:
• Serial Port Connectors
• Communications Cables
• Commands
• Access Levels
• Password Protection
You can view and change control settings, and obtain event and status
information either from the front-panel interface or via one of the serial
ports.
You can access many of the features of the SEL-351P from the front
panel; however, some features can only be accessed from one of the
serial ports.
Table 2 provides the serial port commands (with
descriptions) as well as the corresponding front-panel pushbutton, if
applicable.
Getting Started With Communications
Before you attempt communications with the SEL-351P, via either the
serial ports or the front-panel interface, the following precautions must
be taken:
Verify that the SEL-351P has been properly installed and that
the settings have been programmed by qualified personnel.
Become familiar with and understand the information presented
in the Communications, Front-Panel Interface, and Settings
sections.
For serial port communications, the previous two precautions apply.
You must also carry out the following:
Select the appropriate communications cable (usually SEL Cable
C234A – see
Table 1).
Choose a terminal emulation program on your personal
computer (PC) to communicate with the SEL-351P.
Set the communications parameters for the connected PC
communications port to the default settings. (Press the ENTER
key, and the SEL-351P will respond with a “=” prompt, which
indicates Level 0 access is established – see
Table 4.)
Default Settings for
Serial Ports:
Baud Rate = 2400
Data Bits = 8
Parity = N
Stop Bits = 1
Terminal Emulation
Programs:
Examples of PC-based terminal
emulation programs include:
ProComm Plus™, Relay
Gold™, Microsoft Windows
®
Terminal™ and
HyperTerminal™, Smartcom™,
and Crosstalk™.
Hint:
For the best display, use
VT-100 terminal emulation or
the closest variation.
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