User communication for communication with a fieldbus and network.

Communication users, that can be connected to form an interface between a network (N) and a field bus (BU), first, in the network (N) and, on the other hand, in the bus field (BU), wherein the communications component (P) has means for representing terminals (a, B) connected to the field bus (BU), which represent, from the point of view of the network, terminals (a, B) not accessible via the network (N), which means can be activated through the network (N) via the transmission protocol defined for the network (N) exactly the same way as the user of the communication itself (P) or other communication users (S), wherein the field bus (N) synchronizes a common address space for the user communication (P) and terminals (a, B), which can be played at least in the memory (M) of the communications subscriber (P), wherein in the case of a telegram reaching trav s network (N) alusuario communication (P) and which is directed to a terminal shown, the means holding the development of the necessary steps according to the transmission protocol defined for the network (N) for receiving a frame, characterized in that the means have software objects (a ', B' ') as an instance of an object type adapted to the respective functionality of the terminal (a, B), which make available a collection of data inlet and outlet and adapted to the respective functionality of the terminals (a, B), through which you can access certain features of the terminals (a, B) or of the object classes that represent methods.