SIST EN 61334-4-33:2002

Distribution automation using distribution line carrier systems -- Part 4-33: Data communication protocols - Data link layer - Connection oriented protocol

Covers the services required by the data communication protocol (DCP) logical link control (LLC) sublayer entity at the logical interfaces with the LLC -user layer and the MAC sublayer, using the connection-oriented LLC procedures.

Verteilungsautomatisierung mit Hilfe von Trägersystemen auf Verteilungsleitungen -- Teil 4-33: Datenkommunikationsprotokolle - Sicherungsschicht - Verbindungsorientiertes Protokoll

Automatisation de la distribution à l'aide de systèmes de communication à courants porteurs -- Partie 4-33: Protocoles de communication de données - Couche liaison de données - Protocole orienté connexion

Couvre les services exigés par l'entité de la sous-couche contrôle de liaison logique (LLC) du protocole de communication de données, aux interfaces logiques entre la couche utilisateur LLC et la sous-couche MAC, en utilisant les procédures LLC en mode orienté connexion.

[Not translated]

General Information

• Status: Published
• Publication Date: 31-Mar-2002
• ICS: 29.240.20 - Power transmission and distribution lines
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: PSE - Power systems management
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2002
• Due Date: 01-Apr-2002
• Completion Date: 01-Apr-2002
• Ref Project: EN 61334-4-33:1998 - Distribution automation using distribution line carrier systems - Part 4-33: Data communication protocols - Data link layer - Connection oriented protocol

Overview

EN 61334-4-33:1998 (CLC) is a European standard in the EN 61334 series titled Distribution automation using distribution line carrier systems - Part 4-33: Data communication protocols - Data link layer - Connection oriented protocol. The standard specifies the services required by the Data Communication Protocol (DCP) Logical Link Control (LLC) sublayer at its logical interfaces with the LLC-user and the MAC sublayer, using connection‑oriented LLC procedures. It applies to distribution automation over power lines and supports telecontrol and telemetry in power distribution networks (ICS: 29.240.20; 33.200).

Key topics

• Scope and purpose: Defines the required services and behaviour of the LLC sublayer entity for connection‑oriented operation in DCP-based distribution line carrier systems.
• Logical interfaces: Describes the interaction points between the LLC-user and the MAC sublayer (logical interfaces), clarifying service primitives and expected behaviours.
• Connection‑oriented procedures: Focuses on connection setup, maintenance and teardown using connection‑oriented LLC methods (as required by DCP).
• Interoperability focus: Aims to ensure consistent implementation of LLC services so devices from different vendors can interoperate on distribution line carrier networks.
• Standards context: Positioned within the EN 61334 family addressing data communication protocols for power-line based distribution automation.

Note: The document extract confirms scope but does not include detailed protocol fields or state machine specifics; implementations should consult the full standard text for prescriptive requirements.

Applications

• Distribution automation: Implementing reliable data link services for remote control, fault reporting and automated switching over power distribution lines.
• Telecontrol and telemetry: Supporting supervisory control and data acquisition (SCADA) functions that require connection‑oriented, reliable data delivery.
• Equipment and firmware development: Guiding manufacturers of line carrier modems, PLC gateways, RTUs, and protocol stacks to implement LLC services compatible with DCP.
• Testing and conformance: Providing the basis for interoperability testing and certification of distribution line carrier communication equipment.

Who should use this standard

• Utility communication engineers and system architects
• Device manufacturers and firmware developers for power-line carrier equipment
• Systems integrators deploying telecontrol/telemetry solutions
• Test laboratories and certification bodies evaluating DCP/LLC compliance

Related standards

• Other parts of the EN 61334 series covering physical layer, MAC sublayer and higher-layer protocols for distribution line carrier systems (refer to the EN 61334 family for complementary requirements).

Keywords: EN 61334-4-33:1998, distribution automation, distribution line carrier, DCP, LLC, data link layer, connection-oriented protocol, telecontrol, telemetry, power distribution.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2002
[Not translated]
Distribution automation using distribution line carrier systems -- Part 4-33: Data
communication protocols - Data link layer - Connection oriented protocol
Verteilungsautomatisierung mit Hilfe von Trägersystemen auf Verteilungsleitungen -- Teil
4-33: Datenkommunikationsprotokolle - Sicherungsschicht - Verbindungsorientiertes
Protokoll
Automatisation de la distribution à l'aide de systèmes de communication à courants
porteurs -- Partie 4-33: Protocoles de communication de données - Couche liaison de
données - Protocole orienté connexion
Ta slovenski standard je istoveten z: EN 61334-4-33:1998
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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