unique IP address that specifies the location for the TCP/IP
protocol.
IRIG-B
Inter-Range Instrumentation Group's time code format B
LAN
Local area network
LC
Connector type for glass fiber cable, IEC 61754-20
LCD
Liquid crystal display
LED
Light-emitting diode
LHMI
Local human-machine interface
MAC
Media access control
MMS
1. Manufacturing message specification
2. Metering management system
Modbus
A serial communication protocol developed by the Modicon
company in 1979. Originally used for communication in PLCs
and RTU devices.
PCM600
Protection and Control IED Manager
PO
Power output
PRP
Parallel redundancy protocol
REF611
Feeder protection and control relay
RJ-45
Galvanic connector type
RS-485
Serial link according to EIA standard RS485
RSTP
Rapid spanning tree protocol
SAN
Single attached node
SNTP
Simple Network Time Protocol
SO
Signal output
WAN
Wide area network
WHMI
Web human-machine interface
Section 6
1MRS757456 D
Glossary
180
REF611
Application Manual
Summary of Contents for REF611
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