Presentation of Language Objects Associated With the Analog Function
(Original Document)
Overview
Analog modules are associated with different IODDT's.
These IODDT's are predefined by the manufacturer; they contain Input/Output Langage Objects belonging to an application-specific module's channel.
There are six distinct IODDT types for the Analog Function:
NOTE: IODDT variables can be created in two different ways:
Language Object Types
Each IODDT includes a series of language objects used to drive and monitor their operation.
There are two types of language objects:
Implicit Exchanges pertain to the modules inputs and outputs: measurement results, data and commands.
Explicit Exchanges make it possible to configure and diagnose the module.