摘要 |
The invention relates to a method for determination of the processing sequence of components (4) of a function plan (2) for a sequentially operating automation system. Each component (4) is allocated a component code (A, B, C, ..., I) in a reversible unambiguous manner and, whilst the components (4) have a signal input and output connection, these should be applicable to a number of various function plans (2) and thus minimise the reaction time of an automation system to process signals. The above is achieved, whereby the signal path in the function plan (2) commences at an initial component in a recursive procedure in the forward direction and returns in the backward direction. A given set of propagation rules for the forward direction and for the backward direction are defined, the components (4) reached in the course of a forward propagation are allocated to a sequence list, the list elements of which include the component codes (A, B, C, ..., I) and during each run through the recursive loop the sequence list obtained on the previous run is updated by means of the current sequence list. |