9.4.2.3 Peer-to-peer
This is a non-connection-oriented, high speed type of communication usually between substation
equipment, such as protection relays, intelligent terminal. GOOSE is the method of peer-to-peer
communication.
9.4.2.4 Substation configuration language (SCL)
IEC 61850 has defined a series of configuration documents (ICD, IID, SCD, SED, CID), which are
prepared with SCL (substation configuration language). The SCL includes the following:
Head: it is used to identify a SCL configuration document and its version, and also to designate
relevant names into the mapping option of information (FuntionName)
Substation: it is used to describe the function structure of the substation, and mark the primary
devices and their electrical connection relationship.
IED: intelligent electronic device description, to describe the IED pre-configuration, access points,
logic devices, logic nodes, data objects, etc.
DataTypeTemplate: the instantiated logic node type, and logic node type is a specific sample of
logic node data.
The purpose to define and use SCL is that the description of intelligent electronic device capability
and description of substation automation system can be exchanged in a compatible manner
between the intelligent electronic device management tools and system configuration tools
provided by different manufacturers.
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