IEC TC 57 Just Published Amendment 1 of FDIS of IEC 61850-9-2

The following FDIS has been published last week:
57/2112/FDIS

Amendment 1 – Communication networks and systems for power utility automation – Part 9-2: Specific communication service mapping (SCSM) – Sampled values over ISO/IEC 8802-3

The ballot closes: 2019-08-09

Compared to the second edition, this first revision of the second edition:

a) updates the normative references
b) adds a synchronization clause (Clause 9); adds references to IEC 61588:2009 and
IEC/IEEE 61850-9-3 for SV synchronization;
c) modifies physical layer specification in T-Profile;
d) modifies MSVCB components (Table 9 and Table 10);
e) deprecates usage of USVCB;
f) modifies encoding for the transmission of the sampled value buffer (Table 14);
g) adds Table 20;
h) adds Table 21;
i) adds Annex C related to possible backward compatibility issues between revisions of this
standard;
j) provides clarifications and corrections to the second edition of IEC 61850-9-2, based on the
tissues = { 1349, 1272, 1055, 944, 863 }.