Abstract. A method for constructing a code with summation of single information bits is presented. When constructing a code with summation, it is proposed to calculate the modified weight of the information vector by determining the smallest nonnegative deduction of its true weight using a predetermined module, and then correct the resulting number using two correction factors. These coefficients are calculated as convolutions modulo two of some different subsets of bits of the information vector. The code thus obtained is a three-modular code with the summation of single information bits, it is comparable in its redundancy with the classical Berger code but allows better detection of errors in the information vectors. Three-modular codes with summation extend the class of known codes with low redundancy, the use of which allows reducing the structural redundancy of testable discrete devices and technical means of diagnosing their components.

Keywords: discrete system, controllable structure, testing, Berger code, code with summation, error detection, code generator

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