Sel 411L - Table 10.2 General Serial Port Settings

P.10.5
Date Code 20151029 Protection Manual SEL-411L Relay
Basic Relay Operations
Establishing Communication
For in-depth information on a particular ASCII command, enter the command
name after typing HELP. For example, for help on the EVENT ASCII
command, type HELP EVE <Enter>.
When you are using
ACSELERATOR QuickSet, press <F1> to get help, or
select the Help menu from the
ACSELERATOR QuickSet toolbars. The help
information in
ACSELERATOR QuickSet gives detailed information and
sample screens in a GUI format.
Making an EIA-232
Serial Port
Connection
The following steps use any popular computer terminal emulation software
and SEL serial cables to connect to the relay.
Use an SEL Cable C234A to connect a 9-pin computer serial port to the relay.
Use an SEL Cable C227A to connect a 25-pin computer serial port to the
relay. See Section 1: Communications Interfaces in the Communications
Manual for further information on serial communications connections. These
and other cables are available from SEL. Contact the factory or your local
distributor for more information.
Step 1. Connect the computer and the relay using the serial
communications cable.
Use the 9-pin serial port labeled PORT F on the relay front panel.
Step 2. Apply power to both the computer and to the relay.
Step 3. Start the computer terminal emulation program.
Step 4. Set your computer terminal emulation program serial
communications parameters.
The default relay communications port settings are listed in
Table 10.2.
Also set the terminal program to emulate either VT100 or
VT52 terminals. These terminal emulations work best with
SEL relays.
Step 5. To check the communications link, press <Enter> to confirm
that you can communicate with the relay.
You will see the Access Level 0
= prompt at the left side of your
computer screen (column 1).
If you do not see the prompt, check the cable connections and
confirm the settings for the default communications parameters
of Table 10.2 in your terminal emulation program.
Table 10.2 General Serial Port Settings
Name Description Default
PROTO Protocol (SEL, DNP3, MBA, MBB, MBGA, MBGB,
RTD, PMU)
SEL
SPEED Data speed (300 to 57600, SYNC
a
)
a
SYNC setting only available when PROTO := MBA or MBB.
9600
DATABIT Data bits (7, 8 bits) 8
PARITY Parity (Odd, Even, None) N
STOPBIT Stop bits (1, 2, bits) 1
RTSCTS Enable Hardware Handshaking (Y, N) N