This document gives an brief introduct of the 61850 protocal. 3 I0 O Z& ^$ x1 s* r2 @ 2 ?$ W5 g& S3 s$ ]IEC 61850 ( @9 d% Z5 b9 S& \" I2 xCommunications Networks and Systems in Substations' ]; x4 ?3 L! J
• Specifies Unified Schema for Organizing Data in Heterogeneous Power System Devices ) B: p9 V% K- x/ M4 i0 z* P) ]• Enables Integrated Automation of Power Systems in Substations# g8 l. D2 j# g0 r1 t7 d X! l: ~0 l
• Mu-4000 Identifies Vulnerabilities in IEC 61850 Implementations% g' X1 I+ @0 u2 c( _4 X( [% T
Where is IEC 61850 Used? : `* z7 z, E# T9 w! a" }+ zThe Communications Networks and Systems in Substations" ?# j8 U3 |1 j/ m [# ]+ g
protocol (IEC 61850) enables a new networking approach& B- l& i/ C8 e5 J5 U
for power system automation in substations. Traditional$ d9 v, |7 i. Q% X+ N0 b1 e c
communications were geared around slow transmission & s. q3 i* f( N# p9 qspeeds, which constrained the rate of data flow and forced' q( y# V4 y0 \4 {/ y
operators to configure and operate power systems on an 8 i5 }6 E/ l" w- _# B( {1 uexpensive, mostly manual basis. IEC 61850 was designed5 v- l2 t/ f, Q" D/ x
for higher-speed networks that can carry more data. More ( T/ j0 T! q& R2 b' Ycapacity and speed enables automated control actions that : g) n3 f9 F8 S4 R' A: Yare initiated by computers in the substation rather than by a& t/ w! Y# S; `* }" @# P
human at a distant central site. The protocol specifies how & ?( O) }$ v8 A6 E" b$ T- h y* mpower system devices should organize data in a consistent" U8 q8 y" @' O# X! Z+ I) }! g
way for all types and brands of devices, and related services.$ r4 v0 t% _" H% \ ?5 a& l
The abstraction of data items/objects and services provided by IEC 61850 are independent of underlying protocols. This abstract data model ' D+ F4 Q! k# s6 _' I! L/ dis mapped to a specific protocol stack based on MMS (ISO/IEC 9506), TCP/IP and Ethernet.