brooksg44

@Joe Tauser It has been quite interesting. I sent you a connect request on Linkedin. So is Unitronics PLCs that popular in St. Louis enough for you to make a living at it? I don't really like the fact that Unitronics doesn't have a built in simulator. But I might be interested enough to purchase one to evaluate for my curriculum. I would be looking for something low end with Ladder Logic and HMI for maybe incorporating it into my curriculum. I teach Electrical Automation at Idaho State University. This is my retirement job. Send me some specs and a quote to my work email broogreg@isu.edu Regards, Gregory Brooks

@Joe Tauser See attached Grafcets. Although both of these Grafcets drive the outputs the same. The logic to get there is totally different. That's why I said your solution was intuitive and creative. The question was designed to see how you do EQU/MOVEs when a sequence have AND branches or does multiple things at the same time. I was hoping you had better solutions than what I have come up with for the branches. I personally think this is where this methodology becomes ugly and less intuitive and why I prefer Sets/Resets. Every programmer does it different. I don't have a ready made solution for MixerTank but have attached one for IntroToSFC, Net6 starts the and branch and Net 13 concludes the and branch. I base these methodology from Asian PLCs that have STL (Step Ladder) capability. Same as Domore Stage programming if you are familiar with that line. IntroToSFC_Original.pdf IntroToSFC_Modified.pdf Codesys IntroToSFC STL.pdf

@Joe Tauser Creative and Intuitive Solution. One could argue that you modified the Grafcet. But what I was looking forward to seeing is how you implement multiple pointers for handling the And Branches. Here is another Grafcet with 3 independent branches. Also a Codesys snippet of my solution. I was curious as to what your solution would be. IntroToSFC.pdf CodesysSnippet.pdf

N3LevelSwitch Sorry, Having trouble using forum interface. How do I just reply to a posting?

I just installed Unitronics mainly to see Joe Tauser statemachineexample.vlp. I don't see any icons that indicate a simulator and I am guessing physical plc hardware is required to test. Is there a simulator? and if not is one planned for in the future?

Just curious as to how you would handle setting multiple steps using this technique? See attached pdf. 2023-12-24_17-18-46.pdf