4. Configuration
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Add an instance of IEC61850 Server protocol to one of the available Ethernet channels (NET 1
to NET 6). To perform this procedure, see chapter Inserting a Protocol Instance.
Configure the Ethernet interface. To perform this procedure, see chapter Ethernet Interfaces
Configuration
Add a Logical Device
Add the desired Logical Nodes, including optional objects and attributes if necessary
Create and configure Datasets, selecting elements of preconfigured Logical Nodes
Create and configure Reports (buffered and non-buffered) using the previously defined Datasets
Create and configure the sending of GOOSE messages (GOOSE Publisher) using the previously
defined Datasets
Set the receiving of GOOSE messages (GOOSE Subscriber) by importing .CID files
Configure the RTU communication points mapping for attributes of Logical Nodes
Descriptions of each setting are listed below in this chapter.
IEC61850 Data Model Implementation
The major difference of IEC 61850 as compared to other known protocols (DNP3, MODBUS, etc...)
is in the data model used for communication. In the IEC61850, the data are set as large symbolic data
structures that represent a logical or physical element present on the system. These structures are
called Logical Nodes, which are formed by objects which, in turn, include a set of attributes. Finally,
the attributes can be simple or structured. Figure 4-38 illustrates the hierarchical structure of the data
model. The Logical Nodes are represented by symbols in orange, while the objects have the green
color and the attributes have the blue color:
Figure 4-38. Structured Data Model
Although they are represented as a data structure, Logical Nodes often have an associated algorithm
which may be run on a particular IED or also distributed among multiple IEDs.