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en06000104.vsd
AP
Subnetwork
Control
IED
CVMMXU1
SB1.LD0
Server
LPHD
SXCBR1
SCSWI1
SXSWI1
SCSWI2
SXSWI2
SCSWI3
SXSWI3
SCSWI4
SXSWI4
SCSWI5
LLN0
Mod
CBOpCap
Origin
Data
Data
Attribute
Beh
Health
NamePlt
ctlVal
Pos
Loc
OpCnt
BlkOpn
BlkCls
stVal
q
t
Logical
Node
ctlModel
IEC06000104 V2 EN
Figure 4:
Organization of LDs, LNs, DOs and DAs in an IED
•
A server represents the communication interface to the subnetwork (Ethernet).
•
One or more logical device(s) (LD) are connected to a server.
•
A set of logical nodes belong to a LD.
•
The LN LLN0 is a special logical node per LD and contains for example the data
sets, the various control blocks, inputs (from GOOSE messages). In the IED
series, the data sets and the control blocks shall be located to LD0.
•
The LN LPHD is a special logical node per LD and contains data objects that
describe the status of the physical device (the IED)
•
Each logical node represents a function and contains a number of data objects
(DO)
•
Each DO includes a number of data attributes (DA)
The data objects represent information signals that may be routed to station level IEDs
or to other bay IEDs that are communicating via GOOSE. The signal engineering task
is to select the requested signals (DOs) and link them to the client IEDs as receiver.
When using a dataset for MMS, the requested signals are DOs but when creating a
dataset for GOOSE messaging, DAs are used.
1MRK 511 349-UEN -
Section 3
Substation Configuration description Language (SCL)
670 series 2.1 IEC
31
Communication protocol manual
Содержание Relion 670 series
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