Step-by-step

Good afternoon.

Tell me how to organize a step-by-step program when one step is followed by another... how to do it gracefully.

Now I solve this with the delay blocks on and off.

I don't know))) I'm not a real programmer.

Let's try to explain by example: let's Say I need to turn on outputs Q1 and Q2 for ten minutes, then turn them off and turn on Q3 for a while until the dependent value of AI1 changes above the threshold, and then turn on Q1 and Q2 again for twenty minutes and finish the program. Until it's activated again. Simply put, the next step does not start until the previous one has worked out, by time or event. And other parts of the program were not executed until the loop was completed.

Thank you very much!!!! Fortunately, at the age of 40, I needed knowledge that I had never thought of. I study the logo by calling help)))

Your answers help me a lot. In General, I understand, and you do not have an example for latching relays?