1MAC302441-MB A Section 4
Glossary
RER620 51
Point List Manual
Section 4 Glossary
AIM Analog input module
ANSI American National Standards Institute
AR Autoreclosing
BIO Binary input and output
CB Circuit breaker
CBB Cycle building block
CBFP Circuit-breaker failure protection
CROB Control relay output block
CTO Common time of occurrence. The time and date CTO object is an
information object that represents the absolute time of day.
CTRL Control logical device
DFR Digital fault recorder
DR Disturbance recorder
EMC Electromagnetic compatibility
HMI Human-machine interface
IEC 61850 International standard for substation communication and
modelling
IED Intelligent electronic device
LD0 Logical device zero (0)
LED Light-emitting diode
LHMI Local human-machine interface
LLN0 Logical node zero (0)
PCM600 Protection and Control IED Manager
PSM Power supply module
SBO Select-before-operate
stVal Status value
Val Value