摘要:A particular class of communication protocols has been created to ensure the interaction of specialized process control devices and complex technical objects. Several methods based on determining the source for groups of messages have been created to increase the reliability of identification. However, they suffer from high computational complexity, which depends on the number of possible options for forming such groups from the entire set of messages processed by the receiver. This study aims to increase the reliability of identification and reduce the computational complexity of existing algorithms. Therefore, this article proposes a method of limiting the set of data packets processed by the device. The method can be used in protocols in which the size of the identification information field is limited to a few bits. The evaluation demonstrates that limiting the number of messages and the occurrence reduces 1.5 to 3.0 times the probability of an error when defining the source of message groups. Furthermore, the frequency of repeated questions caused by identification errors is reduced, which ensures a reduction in the information redundancy of the transmitted data and an increase in the speed of their processing.