7.20
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Serial Port Communications and Commands
SEL ASCII Protocol Details
fault or other protection logic. The following is an example of the HIS C
command. The relay will pause after the word
Clearing until the buffer is
completely clear, and then it will display the rest of the information.
=>HIS C <Enter>
Clear History Buffer
Are you sure (Y/N) ? Y <Enter>
Clearing Complete {Relay pauses after the word Clearing}
=>
ID (Identification)
Access Levels 0, 1, B, 2
The ID command displays a variety of identification and configuration
information about the relay.
FID: reports the FID string; CID: reports the checksum of the ROM
code; DEVID: reports the terminal ID as set by the TID setting;
DEVCODE: reports the Modbus
®
code (32).
PARTNO: Reports the part number. The last digit of the part number (p)
indicates whether the firmware supports DNP communication or not. For
p = 1, the communications protocol will be standard plus DNP3 Level 2
Slave; for p = X, it will be standard with no DNP.
CONFIG: reports nominal frequency, phase rotation, input current, and
PT connections.
The designators “abcdef” represent the following:
“a” the nominal frequency; where 0 = N/A, 1 = 60Hz, and 2 = 50Hz.
“b” the phase rotation; where 0 = N/A, 1 = ABC, and 2 = ACB.
“c” the phase input current scaling; where 0 = N/A, 1 = 5A, and 2 = 1A.
“d” the neutral input current scaling; where 0 = N/A, 1 = 5A, 2 = 1A.
“e” the voltage input connection; where 0 = N/A, 1 = Delta and 2 = Wye.
“f” the current input connection; where 0 = N/A, 1 = Delta and 2 = Wye.
=>>ID <Enter>
"FID=SEL-387-0-X131-V0-Z002002-D20011105","0903"
"CID=0FA1","0265"
"DEVID=XFMR 1","0838"
"DEVCODE=32","030C"
"PARTNO=0387003X5HXX4XX","064F"
"CONFIG=111100","0387"
=>>
INI (Initialize Interface Boards)
Access Levels 1, B, 2
The INITIO command reports the number and type of interface boards in the
relay from Access Levels 1 and B. If the number or type of interface boards
has changed since last power up, INITIO will confirm that the interface boards
present are correct from Access Level 2.
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