To the question about the states of workability for automatic control systems with complicated structure

The article discusses the reliability of automated control systems. The approach to the classification systems for health States is analyzed. This approach can be traditional binary approach, operating with the concept of “serviceability”, and other variants of estimation of the system state. This article provides such option, providing selective evaluation of components for the reliability of the entire system. The description of various automatic control systems and their elements from the point of view of health and risk, mathematical method of determining the transition object from state to state, their difference from each other in the implementation of the objective function are introduced. The interplay of elements in different States, the aggregate state of the elements connected in series or in parallel is explored. There are the tables of various logic States and the principles of their calculation in series and parallel connection. Through simulation the proposed approach is illustrated by finding the probability of getting into the system state data in parallel and serially connected elements, with their different probabilities of moving from state to state. In general, the materials of article will be useful for analyzing of the reliability of the automated control systems and engineering of the highly-reliable systems. Thus, this mechanism determined the State of the system provides more detailed information about it and allows a selective approach to the reliability of the system as a whole. Detailed results when assessing the reliability of the automated control systems allow the engineer to make an informed decision when designing means of improving reliability.