ProSoft Technology PLX81-EIP-61850 - Manual (Page 150)

Glossary of Terms PLX8x-EIP-61850 ♦ Communication Gateway
User Manual Server to
IEC 61850 Client
Page 150 of 167 ProSoft Technology, Inc.
July 2, 2015
Generic Object Oriented Substation Event
A report by exception multicast sent by an IED in response to a change of state
in the system. It is high-speed binary object, typically containing the double
command state of each of its status inputs, starters, output elements and relays,
actual and virtual. A GOOSE report enables high speed trip signals to be issued
with a high probability of delivery.
Generic Substation Event Model
Defines two classes of multicast/broadcast data, i.e. GOOSE and GSSE, for the
fast transfer of input and output data values between IEDs.
Generic Substation State Event
Similar to GOOSE but restricts the contained-data to data values of a number of
double-command (bit pairs) status values, for example: open, closed, in
transition, or invalid states.
H
Hold Point
Point, defined in the appropriate document, beyond which an activity must not
proceed without the written approval of the initiator of the conformance test. The
test facility must provide a written notice to the initiator at an agreed time prior to
the hold point. The initiator, or his representative, is obligated to verify the hold
point and approve the resumption of the testing.
Hub
A central device that connects multiple computers on a single network. Each port
of a hub links individual media segments together to create a larger network that
operates as a single LAN. Collisions in the network are possible.
Human Machine Interface (HMI)
Display screen, either part of an IED or as a stand-alone device, presenting
relevant process data to a human operator, with which the operator interacts. An
HMI typically presents windows, icons, menus, pointers, and may include a
keypad to enable user access and interaction.
I
IED Parameter Set
All the parameter values needed for the definition of the behavior of the IED and
its adaptation to the substation conditions. Where the IED has to operate
autonomously, the IED-parameter set can be generated without system
parameters using an IED-specific parameterization tool. Where the IED is a part
of the SAS, the IED-parameter set may include system parameters, which must
be coordinated by a general parameterization tool at the SAS level.