Which component aggregates and catalogs data from multiple sources within an ICS by collecting all events generated from the control loop?

Which component aggregates and catalogs data from multiple sources within an ICS by collecting all events generated from the control loop?

• A. Ladder Logic
• B. Fieldbus
• C. Data Historian
• D. HMI

Answer: (C)

Data Historian is designed to collect, store, and organize time-stamped data from many sources across an ICS, including control loops, PLCs, sensors, and other instrumentation. It creates a centralized archive where events and measurements are indexed by time and source, enabling efficient trending, retrospective analysis, and auditing. This makes it the ideal component for aggregating and cataloging the data generated by the control loop across the system. Ladder Logic is the programming language used in PLCs and doesn’t serve as a central data store. Fieldbus is a network protocol that enables communication between devices, not a repository for historical data. HMI provides visualization and operator interfaces, and while it can display data from a historian, it isn’t the component that aggregates data from multiple sources on its own.

Data Historian is designed to collect, store, and organize time-stamped data from many sources across an ICS, including control loops, PLCs, sensors, and other instrumentation. It creates a centralized archive where events and measurements are indexed by time and source, enabling efficient trending, retrospective analysis, and auditing. This makes it the ideal component for aggregating and cataloging the data generated by the control loop across the system.

Ladder Logic is the programming language used in PLCs and doesn’t serve as a central data store. Fieldbus is a network protocol that enables communication between devices, not a repository for historical data. HMI provides visualization and operator interfaces, and while it can display data from a historian, it isn’t the component that aggregates data from multiple sources on its own.