IEC 61850-8-1 A communication protocol based on the IEC 61850
standard series and a standard for substation modelling.
IED Intelligent Electronic Device
IP address Internet protocol address is a set of four numbers between
0 and 255, separated by periods. Each server connected
to the Internet is assigned a unique IP address that
specifies a location for the TCP/IP protocol.
LAN Local area network
LC Connector type for glass fibre cable.
LCD Liquid crystal display
LED Light-emitting diode
LHMI Local Human-Machine Interface
Modbus A serial communication protocol developed by the
Modicon company in 1979. Originally used for
communication in PLCs and RTU devices.
Modbus TCP/IP Modbus RTU protocol which uses TCP/IP and Ethernet to
carry data between devices.
MV Medium voltage
PCM600 Protection and Control IED Manager
PO Power output
PST Parameter Setting Tool in PCM600
RAM Random access memory
RCA characteristic angle (also MTA or base angle)
REF615 Feeder protection and control IED
RJ-45 Galvanic connector type.
ROM Read-only memory
RS-232 Serial interface standard.
RS-485 Serial link according to EIA standard RS485.
RTC Real Time Clock
RTU Remote Terminal Unit
SCL Substation Configuration Language
SMT Signal Matrix Tool in PCM600
SNTP Simple Network Time Protocol
SO Signal output
SOTF Switch on to fault
SW Software
Section 12
Glossary
230 REF615
Application Manual
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