The most common technique used for modeling linear, time-invariant systems is the block diagram, with the mathematical model represented as a transfer function. As an example of the first situation - ...

Graphical languages use symbols and diagrams to represent the logic, such as function block diagram (FBD), ladder logic (LD), and sequential function chart (SFC).

Industrial process engineering and PLC program development have traditionally favored Function Block Diagram (FBD) programming over classical imperative style programming like the object oriented and ...