SEL-2020 Command Summary Date Code 20010518
SEL-2020 Instruction Manual
TIME Displays and sets time for the internal clock. To set the clock, type TIME and the desired setting, then
press <ENTER>. Separate the hours, minutes, and seconds with colons, semicolons, spaces, commas, or
slashes.
VIEW m:n Shows data stored in a port's database. Parameter m specifies which port (1-16). Parameter n specifies
what data to view: an address range in decimal or hex; a specific region of the database; GLOBAL for
global data region, LOCAL for local data region, BUF for auto-message buffer, D1-D8 for automatic data
collection regions, or A1-A3 for archived data regions; or you can specify the data type directly, i.e.,
METER, TARGER, HISTORY, etc); or an element. If you are viewing a region, you can add BL to the
command strings to request the SEL-2020 to display element bits with their bit labels.
WHO Shows what is connected to each port. Gives a table showing, for each port, the connected device type
(specific relay type if it is an SEL relay port, otherwise simply the port device type), protocol, baud rate,
data bits, stop bits, parity, and a device identification.
Access Level 2
CONTROL m Parameter m specifies the global elements, R1 through R8, you will operate. You are then prompted to
enter one of three control operations: SRB sets a specified bit; CRB clears a specified bit; and PRB
pulses a specified bit. You specify the bit (1-8) following the operation. To pulse, supply a time as a
second parameter or a 1 second time is the default.
COPY m n Copies port-specific settings (classes P, A, M, U, and L) from Port m to Port n (m and n equal any
combination of 1-16). Type COPY m ALL<ENTER> if you wish to copy the Port m settings to all other
rear-panel port.
DEFRAG Defragments EEPROM.
PASSWORD Shows or sets passwords. PASSWORD 1 BIKE<ENTER> changes Level 1 password to BIKE. The
ALARM contact closes for approximately one second and transmits the response "Set".
SET n Parameter n specifies the specific class: SET G enters global settings; SET C enters calibration settings;
SET A enters automatic message settings; SET U enters user-defined command settings; SET P enters
port settings, SET M enters data movement settings, and SET L enters logic settings. SET A, SET U,
SET P, SET M, and SET L must have an additional parameter to designate the Port (1-16, F).
STORE m:n d Stores data directly into a database. Parameter m specifies the port number (Port F is not a valid option);
parameter n specifies the starting database address; and parameter d is a data stream with each item
consisting of data as characters, strings, decimal integers, hexadecimal integers, or single-precision
floating point numbers.
SWAP n m Switches all port-specific settings (P, A, M, U, and L settings) between two ports. Confirmation is
requested. The involved ports are reset.
TOGGLE m Toggles a specified element bit, m. You specify global elements by their name. Port-specific elements
need the port number preceding the element label (i.e., 4:D2).
Note: All commands accepted by the SEL-2020 are of the form <command><CR> or
<command><CR><LF> (<command><ENTER>) where <command> consists of:
• Commands truncated to the first three characters (SHO 1 = SHOWSET 1)
• Upper and lower case characters, without distinction, except in passwords
• Arguments separated from commands by spaces, commas, semicolons, colons, or slashes
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