G.2
SEL-751 Relay Instruction Manual Date Code 20170927
IEC 60870-5-103 Communications
Introduction to IEC 60870-5-103
IEC 60870-5 was designed for wide-spread telecontrol networks. It is an
international standard based on an international accepted and proven enhanced
performance architecture (EPA) model (see Table G.2). The standard provides
a balance between efficiency and reliability while using minimal hardware.
Layer seven implementation is described in the IEC 60870-5-3 and
IEC 60870-5-4 sections of the standard. Layer two implementation is
described in the IEC 60870-5-2 and IEC 60870-5-1 sections of the standard.
The history of IEC 60870-5 spans from 1990 to 2006. Table G.3 shows the
history during this time period. The first five sections are the basic parts of the
standard. The next six describe the companion standards, and the last two
sections are test procedures of the standard.
Table G.2 IEC 60870-5 Enhanced Performance Architecture Model
Layer Layer Type
7Application
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2 Datalink
1Physical
Table G.3 History of IEC 60870-5
Section Description
IEC 60870-5-1 Transmission Frame Formats
IEC 60870-5-2 Data Link Transmission Services
IEC 60870-5-3 General Structure of Application Data
IEC 60870-5-4 Definition and Coding Information Elements
IEC 60870-5-5 Basic Application Functions
IEC 60870-5-101 CS For Basic Telecontrol Tasks
IEC 60870-5-102 CS For Transmission Of Integrated Totals In Electric Power
Systems
IEC 60870-5-103 CS for Informative Interface Of Protection Equipment
IEC 60870-5-104 Network Access For TCS101 Using Standard Transport Profiles
IEC 60870-5-101 Ed 2 Addendums Incorporated In Standard
IEC 60870-5-104 Ed 2 Addendums Incorporated In Standard
IEC 60870-5-601 Conformance Test Procedures For TCS 101
IEC 60870-5-604 Conformance Test Procedures For TCS 104
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