
71
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 542plus
REF 542plus
1MRS755869
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