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seCurity and PrivaCy in smart Grids
with heterogeneous databases and EMS applications. ose protocols
and their services should be compliant to the OSI layered reference
model and use existing ISO standards to the highest possible degree.
TASE.1 was the first published standard, and it was based on the
ELCOM-90 protocol. e main objective was to provide the opera-
tion of an existing ELCOM-90 protocol over an OSI protocol stack.
e TASE.1 API was developed as specified in the ELCOM-90 pro-
tocol documentation to enable replacements of the two protocols. e
following substandards deal with TASE.1:
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• IEC 60870-6-501 Ed. 1.0: TASE.1 Service Definitions
• IEC 60870-6-502 Ed. 1.0: TASE.1 Protocol Definitions
• IEC/ TS 60870-6-504 Ed. 1.0: TASE.1 User ...