MATHEMATICAL MODEL CHANGE OF DATA TRANSMISSION SPEED DEPENDING ON CHANGE THE LENGTH OF A SEGMENT SPECIALIZED DIGITAL NETWORK DEVICENET

Abstract

DeviceNet is a digital specialized network that enables communication between industrial controllers and I/O devices, providing users with a cost-effective network for reading data from sensors and controlling actuators. In a DeviceNet network, one cable is used for data transmission and for supplying voltage to the network elements. The specialized digital DeviceNet network can be used in the automation systems of various industrial enterprises. First, it was investigated which mathematical dependence would best reflect the nature of the change in the data transfer rate set by the manufacturer of the DeviceNet network on segments of this network of different lengths. It has been established that of the linear, power, exponential, polynomial, logarithmic dependencies, the polynomial dependency best reflects the nature of the change in the data transfer rate depending on the length of the segment of the specialized DeviceNet network based on a thick round cable. A mathematical model of the dependence of the data transfer rate on the length of a segment of a specialized DeviceNet network based on a thick round cable has been established, which reflects the dependence of the change in the data transfer rate on the DeviceNet network based on a thick round cable on the length of the segment with an error of up to 0.85%. The established mathematical model of the dependence of data transfer rate changes on the length of a segment of a specialized DeviceNet network based on a thick round cable will contribute to more effective design of control and management systems based on the DeviceNet network.