Analog modules have different associated IODDTs.

The IODDTs are predefined by the manufacturer. They contain input/output language objects belonging to a channel of an application-specific module.

There are four types of IODDT for the analog application:

Each IODDT contains a group of language objects which are used to control them and check their operation.

There are two types of language object:

Implicit exchanges concern the module inputs/outputs: process value results, information and commands.

Explicit exchanges are used to set up the module's parameters and for module diagnostics.

In the software installation principle, you must create an IODDT-type instance, associate the IODDT instance with the module and generate the project.