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network with no relation to an existing media or protocol. The mapping to an existing
media and protocol is specified in IEC 61850–8–1.
The IEC 61850 standard describes in part 7–2 the ACSI in a media and protocol
independent form. Part 8–1 specifies the mapping of this ACSI to the existing MMS.
The communication section describes how information is routed between the IEDs
and contains the following parts:
• Subnetworks
• IEDs connected to different subnetworks
• Access points per IED to subnetworks
• Address
• IP address of LAN network (is exceptionally part of the address elements)
• Link to GoCB message in transmission direction (extended during signal
engineering and routing)
en06000101.vsd
IED
(server)
- Access Point (AP)
- Address
- GSE; GoCBs
Communication
AP
IED
(server)
- Access Point (AP)
- Address
- GSE; GoCBs
Communication
IED
(server)
- Access Point (AP)
- Address
- GSE; GoCBs
Communication
AP
IED
(client)
- Access Point (AP)
- Address
- GSE; GoCBs
Communication
IED
(client)
- Access Point (AP)
- Address
- GSE; GoCBs
Communication
Subnetwork
IEC06000101 V1 EN
Figure 3: IEC 61850–6: Communication network
Additional information about the server is part of the IED.
3.3 The IED section
The IED section describes the complete IED as it is needed for IEC 61850
communication and signal engineering. The data type template part of an IED may be
seen as part of the IED, even when separated in its own section. The IED's ICD files
include the description of the logical nodes, their data type templates and the used or
1MRK 511 349-UEN -
Section 3
Substation Configuration description Language (SCL)
670 series 2.1 IEC 29
Communication protocol manual