The Wonderware Historian component that acquires data from InTouch is:

The IDAS, or Industrial Data Acquisition System, is the correct choice as it specifically serves as the component designed to acquire data from various sources, including Wonderware InTouch. It functions as a middleware layer that facilitates the communication and data exchange between the InTouch application and the historian database.

The IDAS is responsible for collecting time-series data generated by the InTouch HMI and then transferring that data into the historian for storage and later analysis. This process ensures that data is captured in a timely and organized manner, allowing for efficient monitoring and reporting of operational data.

In contrast, the other components have different roles within the system: the Data Acquisition Service is a broader term that could refer to various services involved in data gathering, while Data Bridge typically highlights the connectivity features between different data systems rather than direct acquisition from specific sources like InTouch. The Automation Interface refers to a variety of functionalities that allow integration and control of automated processes but does not specifically focus on data acquisition from InTouch.