ABB Relion 650 Series Communication Protocol Manual page 22

Section 2
IEC 60870-5-103 overview
Data mapping principle
Almost all IEC 60870-5-103 process data in the IED is mapped into private function types and
information numbers. General principle of the mapping is to keep all process data belonging
to the same function design inside the same IEC 60870-5-103 function type definition.
However, if this mapping principle causes interoperability problems with older installations,
the user can freely remap every available IEC 60870-5-103 process data point by using
PCM600.
IED
IEC05000660 V3 EN-US
Figure 2:
IEC 60870-5-103 communication protocol is mainly used when a protection IED communicates
with a third party control or monitoring system. This system must have software that can
interpret the IEC 60870-5-103 communication messages.
When communicating locally in the station using a Personal Computer (PC) or a Remote
Terminal Unit (RTU) connected to the Communication and processing module, the only
hardware needed is optical fibres (glass/plastic) and an opto/electrical converter for the PC/
RTU.
Table 7:
Connector
glass (ST
connector)
16
Station HSI
Star coupler
RER 125
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Example of IEC 60870-5-103 communication structure for a substation
automation system
Max distances between IED/nodes
Distance
< 1000 m according to optical budget
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en05000660.vsd
Communication protocol manual
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M17109-3 v4
IEC 60870-5-103, 650 series