InTouch and the Historian

The Historian is a real-time and historical database that stores plant process data. It combines the storage capacity of a relational database with the speed of a real-time system. As an enhancement to Microsoft SQL Server, the Historian acquires plant data at dramatically increased speeds. It also integrates plant data with event, summary, production, and historical data from the InTouch HMI and other related products.

The InTouch HMI can store historical tag data to remote historical repositories. In this case, you must share the InTouch HMI application directory and configure Historian to access the InTouch application. If you use the Historian to store InTouch HMI historical data, you must use the Distributed Name Manager from WindowMaker to specify a connection to the database.The InTouch HMI can show historical data stored in a Historian database in a Trend Wizard. You need to install SQL Server client components and browse the Historian computer to access historical tag data.