ABSTRACT
A digital input is well defined and its control values correspond directly to its physical value. It is in this respect an exception; other input values with which we have to deal are not so homogeneous. For example, any data type can transport control information: integer, float, string, etc. To handle those data types the RTDB defines a basic data type
DAT,
which can be of any type typically used in programming languages. The object of DAT type is a container for any data, and it can be used, e.g., for storing strings.
