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Glossary of Terms PLX8x-MNET-61850 Communication Gateway
User Manual Modbus TCP/IP to IEC 61850
Page 206 of 228 ProSoft Technology, Inc.
May 14, 2014
B
Bay
Collection of components of a substation with common functionality.
Bay Level Functions
Functions that pertain to a bay. The bay level represents an additional layer of
control below the overall substation level. These functions communicate via the
logical interface 3 within the bay level and via the logical interfaces 4 and 5 to the
process level, i.e. with any kind of remote I/Os or intelligent sensors and
actuators. Interfaces 4 and 5 may be hardwired also but hardwired interfaces are
beyond the scope of the IEC-61850 series.
Broadcast
Message sent to all nodes on a network.
Bus
Communication system connection between IEDs with communication facilities.
C
Class
Description of a set of objects that share the same attributes, services,
relationships and semantics.
Client
A workstation on a network that requests services from a server and that
receives unsolicited messages from a server.
Communication Connection
Connection which utilizes the communication mapping function of one or more
resources for the conveyance of information.
Communication Stack
Also called protocol stack. Multi-layer stack. In the 7-layer OSI reference model
for Open Systems Interconnection, each layer performs specific functions related
to Open Systems Interconnection communication.
Communication System
Interconnected set of all communication links.
Configuration
The assignment of values to parameters of a system or device that determine its
function and operation.
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