Advanced FBD programming
Level Up Your FBD Skills – Building Reusable Function Blocks (UDFBs) Like a Pro Let me ask you something. Have you ever copied and pasted the same logic over and over again—just for different motors, valves, or pumps? I have. And I'll be honest—it feels fine at first. A quick Ctrl+C, Ctrl+V, change a few tag names, and you're done. But then you realize you need to change the timer from 5 seconds to 10 seconds. And now you're updating it in 17 different places. One mistake, one missed update, and your machine behaves differently on Line A versus Line B. That's not engineering. That's chaos. Today, we're going to fix that permanently. We're going to turn our humble motor control logic from the last article into a reusable, parameterized Function Block—a UDFB (User-Defined Function Block) that you can drag, drop, and configure in seconds. Think of it like this: instead of writing the same recipe from scratch every time, you're creating a template where you...