Defining function block types
Alois Zoitl, Robert C. Lewis · Institution of Engineering and Technology eBooks · 2014
This chapter reviews how to create type definitions for function blocks and shows how these can be used to create function block instances. Specifically the chapter: reviews different forms of function block definitions; shows how event and data interfaces can be defined and how the external visible behaviour of function blocks can be described; examines how algorithms are constructed and linked to the event execution; considers how instances of function blocks behave; and shows how function block instances can be aggregated to composite function blocks.