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Technical Reference Manual, General
5()B
97
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LON and L
ON
W
ORKS
are trademarks of Echelon Corporation registered in the United States and
other countries. L
ON
M
ARK
is a trademark of Echelon Corporation.
AI
analogue input
CB
circuit breaker
CBFP
circuit-breaker failure protection
CPU
central processing unit
CT
current transformer
DI
digital input
DO
digital output
EMC
electro-magnetic compatibility
GND
ground
HMI
human machine interface
HSPO
high-speed power output
I/O
input/output
IRF
internal relay fault
LCD
liquid-crystal display
LED
light-emitting diode
LON
®
Local Operating Network
1
L
ON
M
ARK
TM
L
ON
M
ARK
interoperability association is an independent
world-wide industry association, which facilitates the
development and implementation of open, interoperable
LonWorks based control products and systems.
1
L
ON
W
ORKS
®
technology for intelligent distributed control
L/R
local/remote
LV
low voltage
MIMIC
a graphic configuration picture on the LCD of a relay
MV
medium voltage
NO/NC
normally open/ normally closed
PCB
printed circuit board
PLC
programmable logic controller
PO
power output
POD
protocol object dictionary
PS
power supply
RTD
resistance temperature device
SNVT
standard network variable type
SO
signal output
SMS
substation monitoring system
SPA
data communication protocol developed by ABB
SPACOM
ABB product family
TCR
thermal coefficient of resistance
TCS
trip circuit supervision
VT
voltage transformer
