Collecting Data from Variable Kinematic Machine Tools with OPC UA Protocol

The article deals with the issues of data collection from technological equipment, the kinematics of which change dynamically during the execution of the control program. The structural model is considered and the hierarchical levels of obtaining data from the CNC system using the OPC UA protocol are highlighted on the example of a milling machine. An extension of the information model OPC UA data for the control of machines with dynamic kinematics is proposed. A generalized information model of OPC-UA data has been built with highlighted common and variable components. Implemented a mechanism for obtaining data on the client side when switching the kinematic scheme from using the “Publisher-Subscriber” model