ProSoft Technology PLX8X-MNET-61850 - Manual (Page 217)

PLX8x-MNET-61850 ♦ Communication Gateway Glossary of Terms
Modbus TCP/IP to IEC 61850 User Manual
ProSoft Technology, Inc. Page 217 of 228
May 14, 2014
Process Related Station Level Functions
Functions using the data of more than one bay or of the complete substation, and
acting on the primary equipment of more than one bay, or of the complete
substation. Examples of such functions are station-wide interlocking, automatic
sequencers or busbar protection. These functions communicate mainly via the
logical interface 8.
Profile(s)
Defined format(s) used by a particular protocol to transmit data objects or
commands, etc.
Protocol
Set of rules that determines the behavior of functional units in achieving
communication.
Protocol Converter
Intelligent Electronic Device connected between two communication networks,
that is capable of translating messages received in one protocol on one network
to a second protocol for retransmission on the other network and vice versa.
Protocol Data Unit
Encoded message containing the service parameters.
Protocol Implementation Conformance Statement
Summary of the capabilities of the system to be tested.
Protocol Implementation Extra Information for Testing
Document (PIXIT) containing system-specific information regarding the
capabilities of the system to be tested which are outside the scope of the IEC
61850 series. Provides information regarding the physical set-up that is not part
of the ACSI. This could be information regarding the hardware, socket, and other
information. The PIXIT shall not be subjected to standardization.
R
Redundant/Redundancy
Existence of more than one means for performing a required function. A spare or
duplicate functionality that allows a system to continue to operate without
degradation of performance in the event of a single failure, for example, a blown
fuse.
Remote Terminal Unit
Typically an outstation in a SCADA system, a Remote Terminal Unit (RTU) may
act as an interface between the communication network and the substation
equipment. The function of an RTU may reside in one IED or may be distributed.