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Section 3
IEC 60870-5-103
Communication Protocol Manual, IEC 60870-5-103
11
Distributed busbar protection REB500
Section 3
IEC 60870-5-103
3.1
Introduction
Busbar protection is not one of the types of protection defined in IEC 60870-5-103.
Nevertheless, the commands and signals of the REB500 system are modeled as far
as possible on functions defined in the IEC recommendation. The functional scope
of the station protocol is therefore reduced. The backup protection functions
breaker failure, time-overcurrent and end fault that are optionally available with
REB500 are also supported.
According to the IEC recommendation, usage of the private range is only permitted
with regard to the compatibility of existing devices. For this reason, additional
REB500 functions that are not defined in the recommendation were implemented
according to the future-oriented generic part of IEC 60870-5-103.
REB500 also optionally provides a private range.
Refer to IEC 60870-5-103 for an explanation of the various abbreviations.
3.2
General functions
The tables below define the functional scope of REB500 according IEC 60870-5-
103. The details are to be found in the recommendation itself.
System functions in monitoring direction
Table 5
System functions in monitoring direction
INF
Description
GI. TYPE. COT
<0> End of general interrogation (polling) –
8
10
<0> Time synchronization
–
6
8
<2> Reset frame control bit (FCB)
–
5
3
<3> Reset CU
–
5
4
<4> Start/restart
–
5
5
<5> Power on
–
5
6
The information number 0 refers to the global function type and is
the same for all system functions. The information numbers 2 to 5
are used with FUN in relation to the main function of a protection
system.