Automation Direct’s recent issue of Automation Notebook has an article on designing a Ladder Logic program. It is an interesting article with many good points. It seems as though I have found many basic programs thrown together for one show. This show becomes the basis for the next show, and 10 years later you have the same program that has been altered 40 times, and which has pieces of code no longer valid or integral, because there wasn’t an overall design to the program. While it is often hard to do in the crunch of an individual production, planning for future incarnations of the program when it is first written will make the process easier in the future.
You can take a look at the article at: