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18. Abbreviations
Abbreviation Description
BIO Binary input and output board
CAN Controller area network
CB Circuit-breaker
CT Current transformer
EEPROM Electrically Erasable Programmable Read-Only Memory
FUPLA Function block programming language; Functional pro-
gramming language; Function plan; Function chart
GPS Global positioning system
HMI Human-machine interface
HW Hardware
IBB Interbaybus
ID Identifier; identification
IEC International Electrotechnical Commission
IP Internet protocol
LCD Liquid crystal display
LD Logical device
LED Light-emitting diode
LON Local operating network
MC Micro controller
PC Personal computer
RAM Random access memory
SCADA Supervision, control and data acquisition
SLD Single-line diagram
SNTP Simple Network Time Protocol
SPA Data communication protocol developed by ABB
TCP Transmission Control Protocol
VT Voltage transformer
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plusREF 542plus
1MRS755869
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