This involves whether a complete set of interfaces, attributes and methods can be used between equipment and equipment, between equipment and control system, between equipment and IT management and operation system, between equipment and IT management and operation system, so that objects can self-identify and analyze each other without prior agreement, just like all just as people speak the same language, they can understand each other's expression and respond to each other. But this matter is very difficult, and everyone is still working hard to achieve this goal.
Horizontal interoperability: One method is to use Profile, which is a function and characteristic configuration predefined for special devices or special applications. Take the application rules of an industrial Ethernet as an example, it formulates characteristics and behaviors independent of manufacturers for equipment and systems in the field of automation technology (such as energy management, functional safety and control drive technology), which can be used as a software interface for user programs, and has nothing to do with equipment and manufacturers, ensuring that machines or factories The software engineering of the equipment used is independent. Because the rules contribute to the openness, interoperability and interchangeability of the equipment, users can determine whether similar equipment provided by different equipment providers has standardized functions and access interfaces. More specifically, the rules include unified term definitions, device models, data structures (such as switch switching status, analogue measurement values, operating variables, product information, etc.), device configuration parameters (such as set values, thresholds, measurement range, etc.), device diagnostic methods and error codes, etc. The application rules can be expanded. eXtensible Markup Language (XML) for structured description. Since the precipitation of the rules is based on the deep understanding and practice of a specific scenario, this definition is accurate and reasonable. Since it is accurate and reasonable, different standard protocols may be interconnected and learn from each other.
Vertical interoperability: Standard Ethernet and industrial and network are all working in this direction. With the continuous progress of Ethernet technology, standard Ethernet has been increasingly directly applied to industrial Internet of Things scenarios to realize OT and IT communication; and the goal of industrial Ethernet is that under the same network deployment, real-time data and non-real-time data can be parallel to form a unified network. Industrial Ethernet in O The T-layer uses real-time technology to ensure the real-time nature of data transmission. At the same time, it can use IP-based non-real-time data paths when communicating with the IT layer. With the characteristics of integrated security mechanisms and independence from suppliers and platforms, the Ethernet-based OPC UA communication standard is developing rapidly. OPC UA has a greater goal, and at the same time, it is also based on horizontal and vertical interoperability, that is, including horizontal intelligent equipment (Machine to Machine, M2M), vertical control equipment, monitoring network, production system and enterprise IT system interoperability.
Post time: Mar-25-2025