Method for operating modular process control system for use in controlling complex industrial installations, has inputs and outputs, central unit and peripheral components arranged in sequential gap free manner

摘要

Method for operating a modular control system has a central or master unit (Z) and a number of peripheral or slave components (Bn) joined to it by a bus or point to point connection system. According to the operating method, the inputs (In) and outputs (Qn) as well as the central unit and the peripheral components are arranged in a sequential gap free manner in a process image (PA) during an initialization phase. An Independent claim is made for a modular control system with a programmable memory (M) and a transfer interface (S) for transfer of a process image.