Process control arrangement for a plant of process and/or automation technology connecting a superordinate communication plane with fieldbus systems

A process control arrangement for a plant of process and/or automation technology, having:

• a superordinated communication plane;
• a number of fieldbus systems;
• and
• a number of fieldbus interfaces serving as plant access points (PAPs), wherein:
• said fieldbus interfaces form a wired discrete Local Area Network (LAN), in which said fieldbus interfaces are connected with one another in series and said fieldbus interfaces network is a self-configuring network,
• each of said fieldbus systems is connected to at least one of said fieldbus interfaces;
• each of said fieldbus interfaces serve for communication between said fieldbus systems and the superordinated communication plane;
• only a first of said fieldbus interfaces is directly connected to said superordinated communication plane;
• said fieldbus interfaces are connected in series with one another beginning with the first of said fieldbus interfaces;
• and
• the superordinated communication plane only issues an address to the first of said fieldbus interfaces in order to communicate with the number of fieldbus systems through the first of said fieldbus interfaces.