NFC 46 641:1991废止
Process Data Highway, Type C (proway C), For Distributed Process Control Systems
出版：Association Francaise de Normalisation
专家解读视频
This standard specifies those elements required for compatible interconnection of stations by way of a Local Area Network (LAN) using the Token Bus access method in an industrial environment. These elements include: the electrical & physical characteristics of the transmission medium; the electrical transmission signalling method used by the Physical protocol; the services and signals provided at interfaces between the Physical and Media Access Control entities; the frame formats transmitted; the Token Bus Media Access protocol; the services provided at the conceptual interface between the Medium Access Control (MAC) sublayer and the PROWAY Link Control (PLC) protocol; the services provided at the conceptual interface between the User of PROWAY and the PROWAY Link Control (PLC) sublayer; the Management of PROWAY stations.
IEC 60955 Ed. 1.0 - Identical
