Communication Protocol
320 PRS-7367
App ID
The application ID, representing the logic device where the GoCB is located. The missing value of
App ID is the Object Reference of GoCB.
DatSet
The values of members of the data set associated by GoCB are transmitted by GOOSE.
9.4.4 Logic nodes and data modeling
9.4.4.1 Logic nodes
IEC 61850 7-4 has defined a series of logic nodes, which constitute the minimum communication
unit of intelligent electronic devices as classified by functions. There are three types of logic nodes
used by the PRS-7000 series unit: management logic nodes (LLN0), physical device logic nodes
(LPHD) and application function logic nodes.
LLN0
Management logic nodes provide the management and control functions for all logic nodes and
data objects within the logic devices. Some common services are modeled in LLN0, such as
setting group control block (SGCB), GOOSE control block (GoCB), SV control block (MsvCB),
reported control block (BRCB and URCB) and log control block (LCB); some common data objects
are modeled in this node, such as Loc, to represent the local and remote operation enabling of the
unit, basing on function soft switch and common settings; some data objects represent the
meaning of the whole logic device, such as Beh, which is jointly formed by the Beh value of all
logic nodes in the logic device, to represent the behavior and status of the whole logic device.
LPHD
It represents the information of physical devices, including the device manufacturer, unit model,
software version, unit serial number, whether agented and the device health status. In this logic
node, it is also extended to include device information such as name of protected device and unit
time calibration method.
Application function logic nodes
Application function logic nodes include when classified by functions:
A: automatic control logic nodes
C: monitoring related logic nodes, such as CSWI
G: general purpose function logic nodes, such as GGIO, GAPC
I: filing related logic nodes,
M: measurement and metering related logic nodes, such as MMXU
P: protection function logic nodes, such as PDIF, PDIS, PTOC, PTRC
R: protection related functional logic nodes, such as RREC, RBRF
S: sensors, monitoring
T: instrument transducer logic nodes, such as TVTR, TCTR
To Next Page
Loading...
Need help?
General