Section 6
Glossary
615 series
Series of numerical protection and control relays for
protection and supervision applications of utility
substations, and industrial switchgear and equipment
AC
Alternating current
AI
Analog input
ASCII
American Standard Code for Information Interchange
BI
Binary input
BIO
Binary input and output
BO
Binary output
CT
Current transformer
DAN
Doubly attached node
DC
1. Direct current
2. Disconnector
3. Double command
DNP3
A distributed network protocol originally developed by
Westronic. The DNP3 Users Group has the ownership
of the protocol and assumes responsibility for its
evolution.
DPC
Double-point control
EMC
Electromagnetic compatibility
Ethernet
A standard for connecting a family of frame-based
computer networking technologies into a LAN
FIFO
First in, first out
FTP
File transfer protocol
FTPS
FTP Secure
GOOSE
Generic Object-Oriented Substation Event
HMI
Human-machine interface
HSO
High-speed output
HSR
High-availability seamless redundancy
HTTPS
Hypertext Transfer Protocol Secure
I/O
Input/output
IEC
International Electrotechnical Commission
1MRS758272 B
Section 6
Glossary
REG615
143
Application Manual
