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IEC16000078-1-en.vsd
AP
Subnetwork
Control
IED
SB1.LD0
Server
Logical
Node
LPHD
SXCBR1
SCSWI1
SXSW1
SCSWI2
SXSWI2
SCSWI3
SXSWI3
SCSWI4
SXSWI4
CTRL
MON
PROT
SLGAPC
CVMMXN1
CCPDSC
SCSWI5
LLN0
LLN0
LLN0
LLN0
Mod
CBOpCap
Origin
Data
Data
Attribute
Beh
Health
NamePlt
ctlVal
Pos
Loc
OpCnt
BlkOpn
BlkCls
stVal
q
t
ctlModel
IEC16000078 V1 EN-US
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.
1MRK 511 393-UEN A
Section 3
Substation Configuration description Language (SCL)
670 series 2.2 IEC
27
Communication protocol manual