BS 7404-1.1:1991

Committees responsible
National foreword
Specification
Introduction
1. Scope
2. Object
3. General aspects related to telecontrol systems
3.1 The role of telecontrol systems in power systems
     operation
3.2 The role of the data transmission system
3.3 Requirements which determine the design of a
     telecontrol system
3.4 Main difference between telecontrol systems and
     local control systems
4. Structures and configurations of telecontrol
     systems
4.1 Interrelation of process network architectures and
     telecontrol system configurations
4.2 Basic functional modules of a point-to-point
     telecontrol system
4.3 Functional software modules
4.4 Configuration of telecontrol systems
5. Functions of telecontrol systems
5.1 Layered structure of telecontrol functions
5.2 Application functions
5.3 Operational processing functions
5.4 Presentation of the process information to the
     operator
6. Transmission of telecontrol data
6.1 The role of data transmission standards
6.2 Data transport, network, link and physical
     transmission functions
6.3 Characteristics of telecontrol data transmission
6.4 Types of traffic in transmission channels
6.5 Telecommunication systems
6.6 Protection of messages against noise on the
     transmission channel
Tables
I. Interrelation of basic functional modules and
     typical systems functions with typical hardware
     modules within a telecontrol system
II. Typical functional software modules of telecontrol
     systems
Figures
1. Typical hierarchical structure of a telecontrol
     system for power transportation and distribution
     network
2. Typical structure of a telecontrol system (shown
     by a point-to-point configuration)
3. General structure of a telecontrol message