IEC 61158-4-25:2019规定了将数据和控制信息从一个数据链路用户实体及时传输到对等用户实体，以及在构成分布式数据链路服务提供商的数据链路实体之间，以及传感器、效应器和其他自动化设备的通信和互通的程序。通过将本文件与OSI或现场总线参考模型中的其他标准一起使用，否则不兼容的系统可能会以任何组合一起工作

IEC 61158-4-25:2019 specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider, and the communication and interworking of sensors, effectors and other automation devices. By using this document together with other standards positioned within the OSI or fieldbus reference models, otherwise incompatible systems may work together in any combination