LogixPro Elevator simulation

But I'll keep trying to work on it

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now THAT'S what we love to hear ...

Now I have to figure out why its not stopping.

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Marcia, Did you get it working, or go on to other things?

did it work??
because i can't make it run the right way, HELP ME PLEASE!!!

need your help marcia, could you make the program run?

joseramirez,
Please read this entire thread. Notice that many others are very willing to help provided you will post a .rsl, .pdf, or both type files of what you have done so far. You can just change the .rsl file extension to .zip (forum rules) to attach to your post.

Marcia, Did you get it working, or go on to other things?

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and notice that this thread is over one and a half years old - so it's a pretty safe bet that Marcia has moved on ...

just post your own material - and some "detailed" questions ... someone will be happy to help ...

need your help marcia, could you make the program run?

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Marcia's Elev[1] program was incomplete. It was only the LogixPro Elevator Exercise 2 Student Problem, where the elevator is only programmed to go to the 4th floor. That is all it does.

In order to add the full functions, much more logic has to be added to Subroutine 4. For example, there is no logic to determine the Lowest Floor Requested, or the Highest Floor Requested. Without those 2 parameters, the elevator will never work correctly. Also, the Car Request buttons are not set up properly. Car Requests 1 and 4 are latched on (correct), other floors 2 and 3 are not.

Marcia has got Sub 5 and 7 swapped and mixed up, so that the functions do not work properly. In Sub 5 (supposed to be 7), the car movement is not tracked correctly. The best method is to use LIM instructions for all 4 floors, so that the stopping point can be a range, not a single encoder value. The reason is that the elevator can not physically stop immediately when the floor location is sensed. The logic must allow for a short stopping time (a LIM range or 2 or 3 encoder counts).

It is best to follow the logic outline given in the LogixPro problem, and not go off on a tangent. If you think about the logical steps that must be done in order, then before the elevator can move (Sub 7 Track Car Movement), you must first do Sub 5 (Do Next Request, or Wait). It is possible to come up with a different subroutine arrangement that will work, but at the student level this is not recommended. Stick with the logic arrangement given in the problem, and it will be easier for others to help you with it.

hello.. anyone has the file of creating 4 floor elevator by logixpro appreciate it?

Let me know if you could open the file, or I send it to you again!

This is a 4 levels elevator simulated but not tested on a real model.
http://andrea1972.altervista.org/files/plc-elevator.pdf

Josera and Andrea, did it take much effort to do this exercise and were you pretty happy with your self that you had nutted it out (hopefully by learning, how the process works and how to accomplish this with a PLC, not downloading it off the net).
Now think about giving this chance to someone THAT MAYBE INTERESTED IN LEARNING PLC"S instead of someone that may have to do this to pass an exam and too lazy to learn.
Does giving away your experience and hard work, seem like such a great idea now?

If you are new to PLC you should start from basic ladder logic examples and basic relay logic elevators.

ladder logic examples
http://elevation.wikia.com/wiki/Elevator_Wiki
relay logic elevator (pdf)