IEC 61158-6-5-ed.2.0

Detail information

Designation: IEC 61158-6-5-ed.2.0

Publication date: 19/08/2014

Pages: 223

Country: International technical standard

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Anotation

IEC 61158-6-5:2014 defines the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5-5, and define the externally visible behavior associated with their transfer. This standard specifies the protocol of the Type 54 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545). This secod edition cancels and replaces the first edition published in 2007 and constitutes a technical revision. The main changes are: - Add support for message padding; - Clarified encoding rules; - Clarified open session service; - Time synchronization now present in annunciation message; - Additional redundancy options in annunciation message. LIEC 61158-6-5:2014 decrit le protocole mis en place pour definir la representation filaire des primitives de service definies dans la CEI 61158-5-5 et definir le comportement visible de lexterieur associe a leur transfert. La presente norme specifie le protocole de la couche application de bus de terrain de Type 5, en conformite avec le modele de reference de base OSI (ISO/CEI 7498-1) et la structure de la couche application OSI (ISO/CEI 9545). Cette deuxieme edition annule et remplace la premiere edition parue en 2007. Elle constitue une revision technique. Les principales modifications sont: - Support ajoute pour le remplissage de messages; - Regles de codage clarifiees; - Service clarifie de session ouverte; - Synchronisation de temps desormais presente dans un message annonciateur; - Options de redondance supplementaires dans un message annonciateur.