ABB RET670 - IEC 60870-5-103 Communication Protocol

4.6 IEC 60870-5-103 communication protocol
4.6.1 Application
en 05000660_ ansi.vsd
TCP/IP
Control
Center
IED
IEDIED
Gateway
Star coupler
RER 125
Station
HSI
ANSI05000660 V3 EN
Figure 325: Example of IEC 60870-5-103 communication structure for a substation
automation system
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.
Functionality
IEC 60870-5-103 is an unbalanced (master-slave) protocol for coded-bit serial
communication exchanging information with a control system. In IEC terminology a
primary station is a master and a secondary station is a slave. The communication is
based on a point-to-point principle. The master must have software that can interpret
the IEC 60870-5-103 communication messages. For detailed information about IEC
60870-5-103, refer to IEC60870 standard part 5: Transmission protocols, and to the
section 103, Companion standard for the informative interface of protection equipment.
Design
General
The protocol implementation consists of the following functions:
1MRK504116-UUS C Section 4
Station communication
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Application manual