[aapoalas]

If you like this, you may find automation project engineer work fun... or at least familiar. Function block diagrams are quite like this: There function blocks are connected together with wires, and the order of operations is defined by block order. Blocks themselves are like builtin functions in the engine, or they can also be composites. The diagram is executed once per control cycle and generally (if no jump blocks exist), each block is always executed exactly once per control cycle regardless of if their inputs have changed or not.

And that is how control logic for anything from breweries to petrochemical plants is implemented! Fun stuff! I happen to work on the UI side of an FBD-based control system, so I float around this stuff day-to-day.

[aaronblohowiak]

Like PLCs or something similar?

[aapoalas]

Yeah, exactly. I'm not too clear on how PLC, DCS (which is what I do), and others relate to each other but function block diagrams are used in both (according to Google anyway).