Prosoft-technology PLX81-EIP-61850 Manual de usuario descargar pdf (Pagina 147)

PLX8x-EIP-61850 ♦ Communication Gateway Glossary of Terms

Server to

IEC 61850 Client User Manual

ProSoft Technology, Inc. Page 147 of 167

July 2, 2015

Conformance Test

Check of data flow on communication channels in accordance with the standard

conditions concerning access organization, formats and bit sequences, time

synchronization, timing, signal form and level, and reaction to errors. The

conformance test can be carried out and certified to the standard or to

specifically described parts of the standard. The conformance test should be

carried out by an ISO 9001 certified organization or system integrator.

Connection

Association established between functional units for conveying information.

Connectivity Node

An identifiable, named, common connection point between terminals of primary

devices whose only function is to connect them electrically with minimum

resistance; for example, a bus bar as a connectivity node connects bus bar

disconnectors. The connection to a device is done at a device terminal. A

connectivity node can connect an arbitrary number of terminals (devices).

Cyclic Redundancy Check (CRC)

A check for transit damage in frames. It is calculated and included in each frame

transmitted by the sending device, and recalculated by the receiving device.

Data

Meaningful, structured, information of applications, located in an IED, which can

be read or written.

Data Attribute

Property of data the defines its name (semantic), format, range of possible

values, and representation of values while being communicated.

Data Class

Class that aggregates data classes or Data Attributes. Specific data classes

carry the semantic within a logical node.

Data Link Layer

Layer 2 of the OSI reference model for Open Systems Interconnection,

responsible for the transmission of data over a physical medium. After

establishment of a link, layer 2 performs data rate control, error detection,

contention/collision detection, quality of service monitoring and error recovery.

Data Object

A data structure that is part of a logical node and represents specific information.

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 166 167

Sin comentarios

Prosoft-technology PLX81-EIP-61850 Manual de usuario Pagina 147