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Telecontrol equipment and systems - Part 6-503: Telecontrol protocols compatible with
ISO standards and ITU-T recommendations - TASE.2 Services and protocol
Ta slovenski standard je istoveten z: EN 60870-6-503:2014
ICS:
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60870-6-503

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 33.200 Supersedes EN 60870-6-503:2002
English Version
Telecontrol equipment and systems - Part 6-503: Telecontrol
protocols compatible with ISO standards and ITU-T
recommendations - TASE.2 Services and protocol
(IEC 60870-6-503:2014)
Matériels et systèmes de téléconduite - Partie 6-503: Fernwirkeinrichtungen und -systeme - Teil 6-503:
Protocoles de téléconduite compatibles avec les normes Fernwirkprotokolle, die mit ISO-Normen und ITU-T-
ISO et les recommandations de l'UIT-T - Services et Empfehlungen kompatibel sind - TASE.2-Dienste und -
protocole TASE.2 Protokoll
(CEI 60870-6-503:2014) (IEC 60870-6-503:2014)
This European Standard was approved by CENELEC on 2014-08-19. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60870-6-503:2014 E

Foreword
The text of document 57/1453/FDIS, future edition 3 of IEC 60870-6-503, prepared by IEC/TC 57
"Power systems management and associated information exchange" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN 60870-6-503:2014.
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2015-05-19
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2017-08-19
the document have to be withdrawn

This document supersedes EN 60870-6-503:2002.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60870-6-503:2014 was approved by CENELEC as a
European Standard without any modification.

- 3 - EN 60870-6-503:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60870-6-702 2014 Telecontrol equipment and systems - EN 60870-6-702 2014
Part 6-702: Telecontrol protocols
compatible with ISO standards and ITU-T
recommendations - Functional profile for
providing the TASE.2 application service in
end systems
IEC 60870-6-802 2014 Telecontrol equipment and systems - EN 60870-6-802 2014
Part 6-802: Telecontrol protocols
compatible with ISO standards and ITU-T
recommendations - TASE.2 Object models
IEC 61970-452 2013 Energy management system application EN 61970-452 2013
program interface (EMS-API) -
Part 452: CIM static transmission network
model profiles
IEC 61970-552 2013 Energy Management System Application EN 61970-552 2014
Program Interface (EMS-API) -
Part 552: CIMXML Model Exchange
Format
IEC/TS 62351-4 2007 Power systems management and - -
associated information exchange - Data
and communications security -
Part 4: Profiles including MMS
ISO 9506-1 2003 Industrial automation systems - - -
Manufacturing Message Specification -
Part 1: Service definition
ISO 9506-2 2003 Industrial automation systems - - -
Manufacturing Message Specification -
Part 2: Protocol specification

IEC 60870-6-503 ®
Edition 3.0 2014-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Telecontrol equipment and systems –

Part 6-503: Telecontrol protocols compatible with ISO standards and ITU-T

recommendations – TASE.2 Services and protocol

Matériels et systèmes de téléconduite –

Partie 6-503: Protocoles de téléconduite compatibles avec les normes ISO

et les recommandations de l'UIT-T – Services et protocole TASE.2

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XG
ICS 33.200 ISBN 978-2-8322-1647-7

– 2 – IEC 60870-6-503:2014 © IEC 2014
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 11
1.1 General . 11
1.2 Control centre . 11
1.3 Architecture . 11
1.4 Network Model . 12
1.5 Relation between TASE.2 and MMS . 13
2 Normative references . 13
3 Terms and definitions . 14
4 Abbreviations . 16
5 TASE.2 Model . 17
5.1 General . 17
5.2 Informal TASE.2 Model Description . 17
5.2.1 General . 17
5.2.2 Associations . 18
5.2.3 Bilateral agreements, bilateral tables and access control . 19
5.2.4 Data Value objects and services . 20
5.2.5 Data Set objects and services . 21
5.2.6 Account Objects and Services . 21
5.2.7 Information Message object and services . 21
5.2.8 Transfer Set objects and services . 21
5.2.9 Common Data Transfer mechanisms . 24
5.2.10 Special Transfer objects and services . 25
5.2.11 Device objects and services . 26
5.2.12 Program objects and services . 27
5.2.13 Event Enrollment objects and services . 27
5.2.14 Event Condition objects and services . 27
5.3 Formal TASE.2 model description . 27
5.3.1 General . 27
5.3.2 General access control requirements . 29
5.3.3 Association management . 30
5.3.4 Bilateral Tables . 32
5.3.5 List of Access Control Specification . 33
5.3.6 Data values . 34
5.3.7 Data Sets . 35
5.3.8 Accounts . 37
5.3.9 Information Messages. 37
5.3.10 Transfer Sets . 38
5.3.11 Special Transfer objects . 43
5.3.12 Devices . 44
5.3.13 Programs . 46
5.3.14 Event Enrollments . 46
5.3.15 Event Conditions . 46
6 Mapping of TASE.2 Object Models onto MMS Object Models . 46
6.1 General . 46

IEC 60870-6-503:2014 © IEC 2014 – 3 –
6.2 Object modelling notation. 46
6.3 The virtual control centre (VCC) . 47
6.3.1 General . 47
6.3.2 TASE.2 Domain mapping . 47
6.3.3 TASE.2 Control Centre mapping . 48
6.3.4 OSI Application Processes, Application Entities and Addressing . 48
6.4 Association object model mapping . 48
6.5 Bilateral Table object model mapping. 49
6.6 Data Value object model mapping . 50
6.7 Data Set object model mapping . 51
6.8 Information Message object model mapping . 52
6.9 Transfer Set object model mapping . 53
6.9.1 General . 53
6.9.2 Data Set Transfer Set object model mapping . 53
6.9.3 Information Message Transfer Set object model mapping . 55
6.10 Next Transfer Set object model mapping . 56
6.11 Transfer Set Name object model mapping . 56
6.12 Conditions object model mapping. 56
6.13 Event Code object model mapping . 57
6.14 Transfer Set Time Stamp object model mapping . 57
6.15 Device object model mapping . 57
7 Mapping of TASE.2 operations and actions onto MMS services . 58
7.1 General . 58
7.2 Use of MMS services . 59
7.2.1 General . 59
7.2.2 Association Management Mapping to MMS . 59
7.2.3 Data Value operations mapping to MMS . 62
7.2.4 Data Set operations mapping to MMS . 66
7.2.5 Transfer Set operations and actions mapping to MMS . 73
7.2.6 Device operations and actions mapping to MMS . 81
7.2.7 Summary of TASE.2 operations . 86
8 Standardized Application-specific objects . 88
8.1 General . 88
8.2 Named Type objects . 88
8.2.1 General . 88
8.2.2 Visible-String-32 Type . 88
8.2.3 MMS ObjectName . 88
8.2.4 Time Stamp Types . 89
8.2.5 TimeStampExtended Type . 89
8.2.6 Time Interval Types . 90
8.2.7 TransferSet Types . 90
8.2.8 Conditions Types . 92
8.2.9 SupportedFeatures Type . 93
8.2.10 TASE.2Version Type . 93
8.3 Named Variable Objects . 94
8.3.1 General . 94
8.3.2 "Supported_Features" . 94
8.3.3 "Bilateral_Table_ID" . 94
8.3.4 "TASE.2_Version" . 94

– 4 – IEC 60870-6-503:2014 © IEC 2014
8.3.5 Data Value objects . 94
8.3.6 Transfer Set objects . 95
8.3.7 "Next_DSTransfer_Set" . 95
8.3.8 "Transfer_Set_Name" . 95
8.3.9 "IM_Transfer_Set" . 95
8.3.10 "DSConditions_Detected" . 95
8.3.11 "Transfer_Set_Time_Stamp" . 96
8.3.12 "Transfer_Report_ACK" . 96
8.3.13 "Transfer_Report_NACK". 96
8.4 Named Variable List objects . 96
8.5 Information Message objects . 96
9 Use cases for semantic integration with IEC 61970 . 97
9.1 General . 97
9.2 Use Case 1: Determining what Measurement/MeasurementValues are
available . 97
9.2.1 General . 97
9.2.2 Use Case 1a: Determining information associated to equipment . 97
9.2.3 Use Case 1b: Determining Measurement information for non-equipment
related measurements . 98
9.3 Use Case 2: Exchange of Bilateral Table information . 98
10 Bilateral Table semantic model . 98
10.1 General . 98
10.2 IEC 61970-452 Classes . 100
10.2.1 Command . 100
10.2.2 Control . 100
10.2.3 IdentifiedObject . 100
10.2.4 DiscreteCommand . 101
10.2.5 MeasurementValue . 101
10.2.6 Setpoint . 101
10.3 ICCP Specific Classes . 102
10.3.1 ICCPAccessPoint . 102
10.3.2 ICCPCommandPoint . 102
10.3.3 ICCPControlPoint . 103
10.3.4 ICCP IndicationPoint . 103
10.3.5 ICCPInformationMessage . 104
10.3.6 ICCPPoint. 104
10.3.7 ICCPSetPoint . 104
10.3.8 ISOAPAddress . 105
10.3.9 ISOUpperLayer . 105
10.3.10 TASE2BilateralTable . 105
10.3.11 TCP_AccessPoint . 106
10.3.12 Enumerations . 106
11 Conformance . 107
Annex A (normative) TASE.2 Operations and actions summary . 108
Annex B (informative) Quality of Service (QOS), Routing and Priority . 110
B.1 General . 110
B.2 Background. 110
B.3 TASE.2 Requirements . 111
B.3.1 General . 111

IEC 60870-6-503:2014 © IEC 2014 – 5 –
B.3.2 Transport layer . 111
B.4 Network layer . 112
Annex C (informative) TASE.2 Operations and actions summary . 113
Annex D (informative) TASE.2 (2002) Additional Model Elements . 114
D.1 General . 114
D.2 Informal TASE.2 Model Description . 114
D.2.1 General . 114
D.2.2 Bilateral Agreements, Bilateral Tables and access control . 114
D.2.3 Account objects and services. 114
D.2.4 Program objects and services . 115
D.2.5 Event Enrollment objects and services . 115
D.2.6 Event Condition objects and services . 115
D.3 Formal TASE.2 Model description . 116
D.3.1 General . 116
D.3.2 Accounts . 116
D.3.3 Accounts models . 116
D.3.4 Transfer Sets . 116
D.3.5 Transfer Account Transfer Set object model . 119
D.3.6 Information Message Transfer Set object model . 121
D.3.7 Special Transfer Sets . 121
D.3.8 Programs . 122
D.3.9 Event Enrollments . 123
D.3.10 Event Conditions . 124
Annex E (informative) Mapping of TASE.2 (2002) object models onto MMS object
models . 125
E.1 General . 125
E.2 Bilateral Table object model mapping. 125
E.3 Time Series Transfer Set object model mapping . 125
E.3.1 General . 125
E.3.2 TSTransmissionPars Object Model Mapping . 126
E.4 Account Object Model Mapping . 127
E.5 Transfer Set Object Model Mapping . 127
E.5.1 Transfer Account Transfer Set Object Model Mapping . 127
E.5.2 TATransmissionPars Object Model Mapping . 127
E.6 Program Object Model Mapping . 127
E.7 Event Enrollment Object Model Mapping . 128
E.8 Conditions Object Model Mapping . 129
E.8.1 General . 129
E.8.2 Event Condition Object Model Mapping . 129
Annex F (informative) Mapping of TASE.2 (2002) Operations and Actions onto MMS
Services. 131
F.1 General . 131
F.2 Use of MMS Services . 131
F.2.1 Association Management Mapping . 131
F.2.2 Transfer Set Operation and Action Mapping . 131
F.2.3 Condition Monitoring Mapping . 132
F.2.4 Get Next TSTransfer Set Value Operation Mapping . 136
F.2.5 Account Operations and Actions Mapping . 137
F.2.6 Query Mapping . 137

– 6 – IEC 60870-6-503:2014 © IEC 2014
F.2.7 Program Operations Mapping to MMS . 138
F.2.8 Event Enrollment Operations Mapping to MMS . 142
F.2.9 Event Condition Actions Mapping onto MMS – Event Notification Action
Mapping . 144
F.2.10 Summary of TASE.2 Operations . 144
Annex G (informative) TASE.2 (2002) Standardized Application-specific Objects . 146
G.1 General . 146
G.2 Named Type Objects . 146
G.2.1 General . 146
G.2.2 TransferSet Types . 146
G.2.3 SupportedFeatures Type . 147
G.2.4 Conditions Types . 147
G.3 Named Variable Objects . 148
G.3.1 General . 148
G.3.2 "Next_TSTransfer_Set" . 148
G.3.3 "TSConditions_Detected" . 148
G.3.4 "TA_Transfer_Set" . 148
G.3.5 "TAConditions_Detected" . 149
G.3.6 "Event_Code_Detected" . 149
G.3.7 Information Message Objects . 149
G.4 Event Condition Objects . 149

Figure 1 – Protocol relationships . 12
Figure 2 – TASE.2 network topologies . 13
Figure 3 – Informal TASE.2 Model . 18
Figure 4 – Transfer DataSet reporting mechanism . 23
Figure 5 – General Transfer reporting mechanism . 24
Figure 6 – Relationship between TASE.2 and real control centres . 28
Figure 7 – TASE.2 server components . 58
Figure 8 – TASE.2 Server association control elements . 60
Figure 9 – Data Value operations . 63
Figure 10 – Sequence of Get Data Value . 64
Figure 11 – Data Set operations . 67
Figure 12 – Sequence of Create Data Set operation . 69
Figure 13 – Sequence of Delete Data Set . 70
Figure 14 – Transfer Set services . 74
Figure 15 – Device operations . 81
Figure 16 – Sequence of Device Control . 82
Figure 17 – Measurements and network models . 97
Figure 18 – CIM and ICCP semantic harmonization . 99
Figure B.1 – ToS Byte field definition RFC-2474 and RFC-3168. 112
Figure F.1 – Sequence of Transfer Set operations and actions . 135
Figure F.2 – Server Program Components . 138
Figure F.3 – Sequence of Program Invocation operations . 142

Table 1 – Scope of the object models in the VCC . 29

IEC 60870-6-503:2014 © IEC 2014 – 7 –
Table 2 – Summary of TASE.2 operations . 87
Table A.1 – TASE.2 Operations versus MMS services . 108
Table B.1 – Typical Priorities . 111
Table C.1 – TASE.2 (2002) Additional Operations and Actions . 113
Table F.1 – Summary of TASE.2 Operations from IEC 60870-6-503:2002 . 145
Table G.1 – TASE.2 Event Objects . 150

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TELECONTROL EQUIPMENT AND SYSTEMS –

Part 6-503: Telecontrol protocols compatible with
ISO standards and ITU-T recommendations –
TASE.2 Services and protocol
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60870-6-503 has been prepared by IEC technical committee 57:
Power systems management and associated information exchange.
This third edition cancels and replaces the second edition published in 2002 and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– the following objects were made informative: Accounts, Programs, Event Enrollment, and
Event Condition;
– services associated with the informative objects were made informative;
– the TASE.2 conformance blocks 6, 7, 8, and 9 have been made out-of-scope.

IEC 60870-6-503:2014 © IEC 2014 – 9 –
The text of this standard is based on the following documents:
FDIS Report on voting
57/1453/FDIS 57/1477/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60870 series, published under the general title Telecontrol
equipment and systems, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 10 – IEC 60870-6-503:2014 © IEC 2014
INTRODUCTION
The Telecontrol Application Service Element (TASE.2) protocol (also known as Inter-Control
Centre Communications Protocol, ICCP) allows for data exchange over Wide Area Networks
(WANs) between a utility control centre and other control centres, other utilities, power pools,
regional control centres, and Non-Utility Generators. Data exchange information consists of
real-time and historical power system monitoring and control data, including measured values,
scheduling data, energy accounting data, and operator messages. This data exchange occurs
between one control centre's Supervisory Control And Data Acquisition/Energy Management
System/Distribution Management System (SCADA/EMS/DMS) host and another centre's host,
often through one or more intervening communications processors.
This part of IEC 60870 defines a mechanism for exchanging time-critical data between control
centres. In addition, it provides support for device control, general messaging and control of
programs at a remote control centre. It defines a standardized method of using the ISO 9506
Manufacturing Message Specification (MMS) services to implement the exchange of data. The
definition of TASE.2 consists of three documents. This part of IEC 60870 defines the TASE.2
application modelling and service definitions. IEC 60870-6-702 defines the application profile
for use with TASE.2. IEC 60870-6-802 defines a set of standardized object definitions to be
supported.
The TASE.2 describes real control centres with respect to their external visible data and
behaviour using an object oriented approach. The objects are abstract in nature and may be
used in a wide variety of applications. The use of TASE.2 goes far beyond the application in
the control centre to control centre communications. This standard must be understood as a
tool box for any application domain with comparable requirements. i.e. the TASE.2 may be
applied in areas like substation automation, power plants, factory automation, chemical
plants, or others which have comparable requirements. It provides a generic solution for
advanced Information and Communication Technology.
The TASE.2 version number for this standard is 2001-08. See 8.3.4 for more details.

IEC 60870-6-503:2014 © IEC 2014 – 11 –
TELECONTROL EQUIPMENT AND SYSTEMS –

Part 6-503: Telecontrol protocols compatible with
ISO standards and ITU-T recommendations –
TASE.2 Services and protocol
1 Scope
1.1 General
This part of IEC 60870 specifies a method of exchanging time-critical control centre data
through wide-area and local-area networks using a full ISO compliant protocol stack. It
contains provisions for supporting both centralized and distributed architectures. This
standard includes the exchange of real-time data indications, control operations, time-series
data, scheduling and accounting information, remote program control and event notification.
Though the primary objective of TASE.2 is to
...