In Understanding Ladder Logic we touched on the origins of Ladder Logic, its structure and execution. So now that we have a understanding of what Ladder Logic is, we can dig a little deeper into how ladder instructions work. And to do that, we need to first understand Boolean math and logic gates. Now, this blog…
+Tech TopicsAutomation NotebookIssue 12 – 2008Learning ResourcesNotebook IssueProductProgrammable ControlTech Thread
Designing a PLC Ladder Program
Thinking back on my first Computer Programming course, the instructor was adamant about flow charting, documenting, and using good tools to design the program. I was 18 at the time and thought, “Anyone can write a good program and documentation isn’t needed. Write it correctly and it’s done.” It didn’t take long to see just…