I. Introduction
Control of information subsystem (IS) represents the organization of such purposeful impact on its components as a result of which the IS passes into the required state [1], [2]. In developing of methods for control of operation of the information subsystem of the automated control system (IS ACS) it is important to consider the control task as an integrated one, which involves the use of a set of procedures used in the IS control system under certain conditions and external influences, ensuring the IS performance indicators in the area of required values.