Glossary and symbols
ENIP-2, manual, ENIP.411187.002. Rev. 11.2020
5
Glossary and symbols
•
AC
–
Alternating current
•
ADC
–
Analog-to-digital converter
•
DC
–
Direct current
•
DI
–
Digital (binary) input
•
DIO
–
Digital (binary) signal
•
DO
–
Digital (binary) output
•
EMC
–
Electromagnetic compatibility;
•
PE
–
Protective earth;
•
PC
–
personal computer;
•
PMU
–
Phasor Measurement Unit;
•
RTU
–
Remote Terminal Unit;
•
SCADA
–
Supervisory Control And Data Acquisition
•
SSR
–
Solid-state relay
U
L-L
(U
AB
, U
BC
, U
CA
)
–
line-to-line voltage
U
L-N
(U
A
, U
B
, U
C
) - line-to-neutral voltage
I (I
A
, I
B
, I
C
)
–
phase current
