BS EN 60870-5-4:1994 IEC 870-5-4: 1993 : Telecontrol equipment and systems — Part 5: Transmission protocols — Section 5.4 Definition and coding of application information elements
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This section of IEC 870-5 applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.
This section of IEC 870-5 gives rules for defining information elements and presents a set of information
elements, in particular of digital and analog process variables, that are frequently used in telecontrol applications.
Telemetering equipment; Data handling; Open systems interconnection; Telemetry; Coding (data conversion); Control systems; Electric power systems; Data transmission; Data conversion; Application layer (OSI); Remote control systems
BS EN 60870-5-4:1994 IEC 870-5-4: 1993 : Telecontrol equipment and systems — Part 5: Transmission protocols — Section 5.4 Definition and coding of application information elements