IEC 61850-8-1 A communication protocol based on the IEC 61850
standard series
IED Intelligent electronic device
IP Internet protocol
IP address 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 the location
for the TCP/IP protocol.
IRF
1. Internal fault
2. Internal relay fault
LC Connector type for glass fiber cable, IEC 61754-20
LECM Communication module
LED Light-emitting diode
MAC Media access control
MFA Multifrequency admittance
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
MTA Also known as RCA or base angle. Maximum torque
angle.
MV Medium voltage
NTP Network time protocol
OC Overcurrent
PC 1. Personal computer
2. Polycarbonate
PCM600 Protection and Control IED Manager
PSMH Power supply module, high voltage
PSML Power supply module, low voltage
RCA Also known as MTA or base angle. Characteristic
angle.
RIO600 Remote I/O unit
RJ-45 Galvanic connector type
RTD Resistance temperature detector
RTD4 Resistance temperature detector
RTU Remote terminal unit
Section 12 1MRS757488 H
Glossary
300 RIO600
Installation and Commissioning Manual
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