SNTP
Simple Network Time Protocol
SOE
Sequence of Events
SP
See Single-Point Indication
SPC
IEC 61850 data type: Single Point Control
SPS
IEC 61850 data type: Single point status
SSD
System Specification Description
ST
Structured Text file
Station Description
A station description is an IEC 61850-compliant file for data exchange between the system configurator and
the IED configurator. The station description contains information on the network structure of a substation.
The station description contains for example, information on the assignment of the devices to the primary
equipment, as well as on the station-internal communication.
Structured Text file
You can import function charts (CFC) from DIGSI 4 in ST format. First, however, export your function charts
from DIGSI 4.83 or higher.
Substation Configuration Description Language
A description language standardized in IEC 61850, SCL is based on XML. This description language allows all
information relevant to an IEC 61850 substation to be documented consistently. This format is therefore suit-
able for exchanging IEC 61850-specific data between different applications, even if these come from different
manufacturers. The described import checks are basically done for all SCL formats, not only for SCD imports.
System Exchange Description
Files in SED format can be used to exchange interface information between DIGSI 5 projects and thus between
substations. To do this, the project extracts the data for the other projects from the file during import and
writes its own data in the same file during export. The contents of an SED file are formulated in SCL.
System Specification Description
Files in SSD format contain the complete specification of a station automation system, including a single-line
configuration of the station. The assignment of logical nodes from IEC 61850 to primary equipment can also
be described in SSD files. This allows device requirements to be defined in the SSD file so that the devices can
be used in the substation. The contents of an SED file are formulated in SCL.
TAI
Temps Atomique International - International Atomic Time
Glossary
SIPROTEC 5, Overcurrent Protection, Manual 1631
C53000-G5040-C017-8, Edition 07.2017
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