FIELD: computer engineering.
SUBSTANCE: invention relates to automation and computer engineering and can be used in systems for monitoring and control of safety of nuclear power plants (NPP). System includes input-output station, priority control station and safety automation controller (KA SB) of each safety channel. Two mutually independent set of software and hardware form a sub-channel A and sub-channel B to perform channel safety functions and contains controller KA SB of subchannel thereof, and each of input-output buses of each sub-channel has a structure such as "tree", top root node which is respectively a processor module for automation of KA SB controller, lower nodes are communication modules with process of MSP of stations SVV1-n and priority control modules MPU of stations SPU1-m, and intermediate nodes are communication modules.
EFFECT: technical result consists in improvement of reliability of system security.
4 cl, 8 dwg
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