We all know the various ways of testing OO systems. However, it looks like I'll be going to do a project where I'll be dealing with PLC ladder logic (don't ask :/), and I was wondering if there's a good way of testing the validity of the system. The only way I see so far is simply constructing a huge table with all known states of the s...
How do I learn PLC programming? Would it differ greatly for different brands of PLCs? Is ladder programming the same as PLC programming? ...
I am trying to use PLC's to monitor a race track. I will be using 3 Photo sensors to show which car crossed the finish line first. Each sensor will have be OTL (Latched) instruction. Each lane will have a light to indicate which car was in first place. The car not in first lights will not come. There will be 3 judges. At the completiono...
On a single ladder rung how many outputs can you have. If you have more than one. Would it be AND Logic, or OR Logic. Series, or parallel. I'm trying to make six lights flash using timer on delay instructions with a closed input instruction. I will using an Allen Bradley SLC 500 series PLC. ...
I'm trying to create a word ladder program in python. I'd like to generate words that are similar to a given word. In c++ or java, I would go through each valid index in the original string, and replace it with each letter in the english alphabet, and see if the result is a valid word. for example (pseudocode) for (int i = 0; i < word.l...