IEC 60870-3 : 1.0

TELECONTROL EQUIPMENT AND SYSTEMS - INTERFACES (ELECTRICAL CHARACTERISTICS)

International Electrotechnical Committee

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FOREWORD INTRODUCTION 1 Scope 2 Object 3 Types of information 4 Interface between telecontrol equipment and process equipment 5 Interface between telecontrol equipment and operator's      equipment 6 Interfaces between telecontrol equipment and communication      subsystems 7 Interface between telecontrol equipment and other data      processing equipment Tables 1 Examples of relationships between signals and types of      information 2 Nominal voltages for binary signals 3 Current classes for binary input signals 4 Current classes for binary output signals 5 Nominal values for analog signals 6 Interference voltage limits and insulation requirements      for binary signals 7 Interference voltage limits and insulation requirements      for analog signals 8 Active binary input signals 9 Passive binary input signals 10 Passive binary output signals 11 Active binary output signals 12 Analog input and output signals 13 Relationship between physical distance (DCE/DTE) and      maximum transmission speed 14 CCITT, ISO and EIA recommendations/standards for DCE-DTE      interfaces Figures 1 Interfaces between modules in a typical telecontrol system 2 Level ranges of binary signals 3 Parameters of a binary signal 4 Level ranges of analog signals 5 Binary input circuits: 5a Active binary input circuit 5b Passive binary input circuit 6 Binary output circuits: 6a Passive binary output circuit 6b Active binary output circuit 7 Analog input and output circuit 7a Analog input circuit 7b Analog output circuit

Abstract

Provides definition of the interface conditions to be fulfilled when connecting together the various elements of equipment needed to constitute a telecontrol system and enabling the user to manage such a system.