GB/T 33863.11-2021
ActiveOPC unified architecture—Part 11: Historical access
OPC统一架构 第11部分：历史访问
Application Summary AI generated
This standard specifies the information model and services for accessing historical data and events in OPC Unified Architecture (UA) systems. It is applied in industrial automation and manufacturing environments to enable clients to retrieve, browse, and update time-stamped process data, alarms, and event logs from servers. The standard ensures interoperability for historical data access across different vendors' control systems, SCADA, and MES platforms.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.