Arrangement comprising a system providing movement, processing and/or

Abstract

In a system for the performance of a plurality of functions, each of the functions is allocated its own function control member comprising a microprocessor with the associated peripheral equipment, and one or more actuating devices. Each control member is capable of providing the control for functions of two or more types, and the different control members are mutually interchangeable. The control members are connected in one or more first wiring loops, each of which is connected to a main computer. The signal transmission in the first loop is performed digitally and in series. The transmission of the signals includes first signals emanating from a basic or operative program in the main computer, said first signals are transmitted during a start-up phase for the system and comprising for each control member information in respect of its adjustment in relation to a function control which is applicable to the type of function and/or the variation in the type of function effected by the control member during an operating phase which follows the start-up phase. The signal transmission also includes second signals emanating from a user program entered in the main computer, which second signals are transmitted in a cyclical fashion and which contain continuous information for each microprocessor relating to the manner in which the function served by the microprocessor is to be controlled. The actuating means are supplied with energy via one or more second wiring loops, each of which is connected to an energy source.