Section 3
Glossary
EF
Earth fault
EMC
Electromagnetic compatibility
IEC
International Electrotechnical Commission
IEC 61850 International standard for substation communication and
modeling
IED
Intelligent electronic device
LHMI
Local human-machine interface
Modbus
A serial communication protocol developed by the Modicon
company in 1979. Originally used for communication in PLCs
and RTU devices.
OC
Overcurrent
PCM600
Protection and Control IED Manager
1MRS757822 B
Section 3
Glossary
Recloser Protection and Control RER615
83
Point List Manual