Siemens SICAM 7KG85X Manual page 279

Glossary
IED
Intelligent Electronic Device
IID
Instantiated IED Description file: It defines the configuration of one IED for a project and is used as data
exchange format from the IED configurator to the system configurator.
Indication off
Status of the indication changes from ON to OFF, that is the indication is deleted
Indication on
Status of the indication changes from OFF to ON, that is the indication is currently present
IP
Internet Protocol
IP address
Addresses in computer networks based on the Internet protocol
LED
Light-Emitting Diode
Limit violation
A value exceeding or falling under a parameterized limiting value
MBAP
Modbus Application Protocol
MBAP Header
Header of a Modbus TCP message consisting of these 4 parts: Transaction identifier (2 bytes), protocol identi-
fier (2 bytes), length (2 bytes), unit identifier (1 byte)
Modbus
The Modbus protocol is a communication protocol based on a client-server architecture.
Modbus RTU
Modbus Remote Terminal Unit: Modbus protocol type for transmitting data via serial networks (for example,
RS485)
Modbus TCP
Modbus Transmission Control Protocol: Modbus protocol type for transmitting data as TCP/IP packets;
TCP port 502 is reserved for Modbus TCP.
NTP
Network Time Protocol: Standard for synchronizing clocks in computer systems using packet-based communi-
cation networks
Power System TN
The Power transformer is neutral-point grounding and the housing of the electric equipment is protective
grounding.
278 SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022