What is BS EN 60870-5-5 - Basic application functions about?
BS EN 60870 is a series on telecontrol equipment and systems. Telecontrol equipment and systems is an electronic device used to operate another device from a distance, usually wirelessly. BS EN 60870-5-5 applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes. BS EN 60870-5-5 defines basic application functions that perform standard procedures for telecontrol systems. Basic application functions are application procedures that reside beyond layer 7 (application layer) of the ISO reference model for open communication systems.
The defined application procedures utilize standard services of the application layer. BS EN 60870-5-5 serve as basic standards for different companion standards that will be elaborated in detail for specific telecontrol tasks. Each companion standard may use a specific selection of the defined functions. Basic application functions, which are not in BS EN 60870-5-5 but are found necessary for defining telecontrol companion standards, should be specified in BS EN 60870-5-5. Only the definition of companion standards will enable interoperability among compatible telecontrol equipment.
Who is BS EN 60870-5-5 - Basic application functions for?
BS EN 60870-5-5 on basic application functions is useful for:
- Telecommunication component manufacturers
- Telecommunication equipment manufacturers
- Design engineers
- Quality control personnel
Why should you use BS EN 60870-5-5 - Basic application functions?
Telecontrol equipment and systems function best when used from a short distance. The general structure of application service data units (ASDUs) used by procedures specified in BS EN 60870-5-5. BS EN 60870-5-5 are compatible with standards defined in sections 1 to 4 of IEC 870-5. BS EN 60870-5-5 defines a companion standard that adds semantics to the definitions of the basic standard or a functional profile. This may be expressed by defining particular uses for information objects or by defining additional information objects, service procedures and parameters of the basic standard.
BS EN 60870-5-5 defines an assortment of basic application functions that utilize standard communication services. The functions are described by presenting diagrams that indicate the sequence of data units that are exchanged between controlling and controlled stations and by describing the tasks of these data units to accomplish the functions. The first two described basic application functions, namely station initialization and data acquisition by polling represent a base for the execution of further basic application functions. These two functions are performed by coordination of particular applications and link services that are described in detail. Other basic application functions that may involve the utilization of polling procedures are then described without repeating details about this procedure. Using BS EN 60870-5-5 you can define basic application functions that perform standard procedures for telecontrol systems.
