Define Historical Data Recording (HDR).
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Historical Data Recording (HDR) is the process of capturing, storing, and managing data generated by industrial processes, equipment, and systems over time. It involves collecting data at regular intervals from sensors, instruments, and control devices deployed in industrial environments. The collected data, which includes measurements, readings, alarms, and events, is stored in a centralized database or data repository for analysis, reporting, and decision-making purposes. HDR systems enable organizations to maintain a record of past events, track performance trends, diagnose issues, comply with regulatory requirements, and optimize processes. By leveraging historical data, organizations can gain insights into their operations, improve efficiency, and make informed decisions to enhance productivity and reliability.