Your plant or equipment is assembled from objects–your control should be, too. New tools deliver the productivity of OOP without the complexity.
Interfaces and Methods are two modern programming concepts which provide essential functionality for Object Oriented Industrial Programming (OOIP). Part 1 of this series introduced OOIP and showed how a control design is built by assembling self-contained objects in much the way the actual plant is assembled from self-contained objects as shown in Figure 1.
Object Oriented Industrial Programming (OOIP) Part 3: Interfaces and Methods