. OPC Unified Architecture Part 16: State Machines. Release 1.05.00. 2021-10-12. , OPC Foundation, 2021.

This document constitutes Part 16 of the OPC Unified Architecture (OPC UA) standard and focuses on State Machines used in industrial automation systems. It describes the modeling of states, transitions, and events, as well as the management and representation of State Machines within OPC UA information models. The document provides principles and specifications for implementing State Machines in OPC UA-based systems and is intended for professionals involved in the development, integration, and management of industrial automation and information systems.