The Real-Time DataBase (RTDB) is the heart of the system: it is the center in which are stored the processing data and the values ​​of the points from the monitored devices.

Any given system data, whether on a physical or logical point (and whether or not connected to a device), is stored in a cell in the database, named Item ("Element").

A Item stores the value of the data, descriptive information and data needed for the development of the value itself.

Each Item can be configured to treat a different type of data, selecting the type:


Digital

Used to represent digital signals (binary states), such as the opening and closing of electrical contacts, the status of a pump, thermal trip, a flag.

Analog

Used to represent analog quantities, such as temperature, level, voltages, numeric values ​​in general.

Text

Used to read or write blocks of text in the areas of memory devices to store text strings in general.


The RealTime Database and its management are discussed in the chapter "Database Management".