Communication network section – Basler Electric BE1-11 IEC 61850 Protocol User Manual
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Figure 8. Elements of the Signal Name Using Product Naming
Figure 9 shows an example of an IED (SB1) with logical devices LD1 and LD2. Each logical device (LD1
and LD2) contain logical nodes LN1 and LN2, which control a circuit breaker QA1 of bay Q1 in voltage
level E1.
Figure 9. Names within Different Structures of the Object Model
Communication Network Section
The organization of the physical IEDs to the communication network is independent of the substation
structure. The IEC 61850 standard defines the communication network with no relation to an existing
media and protocol. The first mapping to an existing media and protocol is done in IEC 61850–8–1 with:
•
Ethernet as medium
•
MMS (Manufacturing Message Specification) protocol as defined in ISO 9506–1 and ISO 9506–2
The IEC 61850 standard describes in part 7–2 the Abstract Communication Service Interface (ACSI) in a
media and protocol independent form. Part 8–1 specifies the mapping of this ACSI to the existing MMS.
The communication section in the SCL file describes the minimum of what is needed to identify how
information is routed between the IEDs in a project. This is:
•
the used sub networks
•
the IEDs connected to the different sub networks
LN Prefix
LN Class
LN Instance #
LNName
LDName
IED Section:
Attribute Name of
element IED
IED Section:
Attribute Inst of
element LDevice
IED Section:
Attribute Inst of element LN
Defined in IEC 61850-7-4
Predefined by IED
Header:
NameStructure=”IEDName”
P
0
0
6
1
-6
3
E1
Q1
QA1
SB1
LD1
LD2
LN1
LN2
LN1
LN2
W1
Voltage Level
Bay
IED
Access Point
Station Bus
S1
In the communication
structure, this connection is
identified as W1E1Q1SB1S1.
In the IED structure, this LD
is identified as -E1Q1SB1LD2.
In the IED (product)
structure, this LN is identified
as -E1Q1SB1LD2CSWI2.
In the substation structure,
this LN is identified as
=E1Q1LD2QA1CSWI2.
In the substation structure,
this CBR is identified as
=E1Q1QA1.
P
0
0
6
1
-6
4
BE1-11
IEC 61850 Engineering