Studio 5000 Traffic Light Logic For Our Add On Instruction ( Video 1)

[@ShaneWelcher]

Join Us & Learn More: allen-bradley-plc-training.com/p/rslogix-5000-add-on-instruction/ Traffic Light Add-on Instruction Series Videos Video 1: kzbin.info/www/bejne/hojKapWiapKeZtk Video 2: kzbin.info/www/bejne/kHicamiPfNZkbqc Video 3: kzbin.info/www/bejne/aKuqXnp4nNZ5oNE Video 4: kzbin.info/www/bejne/gpvGkGiZYpimlbc

[@viggss]

Why is the GreenLight-1 turning back on on the initial sequence? What part of the logic is making it do that?

[@ShaneWelcher]

It's a bug that I fixed. First scan of the processor I have three more videos in this series that show this. They are linked in the show notes

[@vishalvaghela7543]

hello sir could you please make video on it. four-way traffic stop. It will be assumed that opposing traffic lights will be duplicates of each other. This means that the North and South lights will be the same and the East and West lights will be the same. The intersection will be controlled by a simple set of lights: Red - Stop Amber - Stop if Safe to Do So Green - Go White - Walk / Don’t Walk To keep the demonstration short, under normal operation the traffic lights will change every five (5) seconds. Illuminate the white light when walking is allowed. Don’t walk will be assumed if the white light is off. Illuminate the white Walk light as a part of the normal green light sequence. If a walk request is not made, the light sequence will use the standard 10 second timing. If a Walk Request pushbutton is pressed, the timing for the requested direction is increased to 15 seconds. After the green / walk lights are serviced in the requested direction, the sequence timing returns to 10 seconds.

[@ShaneWelcher]

Yes, its just a simple traffic light example

[@danmichaelrimando3304]

WHY DONT YOU HAVE A TIMER FOR THE RED LIGHT?

[@ShaneWelcher]

Because it is controlled from the green not on nor the yellow light on, if both are off then the red light is on by default. This saves time & effort in logical programming. However, PLC logic can be done many different ways so yes, you could have a timer for the red light. With that said, if you can think it then you can do it with PLC controls. Often the way things are programmed depend on the programmer, the end result can still equal the same. I hope that helps.

[@aaw7410]

"im gonna go ahead and do these things" while youre adding logic isnt very helpful im afraid, explaining why you add things and where as youre building would help people learn a little easier i think. That's just my opinion, and with that out of the way, great video! thank you so much for helping me learn how to build logic. Building a two way traffic light truth table showing that the green light is on for 25 seconds, then the yellow for 5 in the east west direction while north south is red for 30 seconds also might help. I am assuming this is for 4 way traffic.

[@ShaneWelcher]

It's just an example of logic, a four way traffic light but I show it better in my Structured text example of the four way traffic light. Feel free to use the search tab on this channel for anything you want to learn. I made it as network based as KZbin would allow. Thanks for the comment