hrohibil
Member
Hi guys..
So I need help on a tank issue.
I attached a simpel drawing of my ladderdiagram and a drawing of the tank with the inputs/outputs.
The ladderdiagram works fine as it is now.
It is a tank. When I push the start button, the whole process begins, and in the end when the liquid reaches the LL low-level, I want the process to begin all over without the need to press start again.
So when you look at the drawing.
When START is pushed, V1 opens for filling the tank. when LH is reached, it stops V1 filling, and starts the V2 heating and the M agitator.
When TH has reached high temperatur, it stops V2 heating and opens V3 drain. When drain has reached LL low level, it stops V3 drain and M agitator.
Here the program ends. I want the process to repeat it self again when it reaches LL, so I dont have to press on start again.
I have tried severals things, but is just messes up my other parameters. Please advice without making to many changes in the ladder.
Best regards Hamid
P.S sorry for my bad hand-drawing. I was so busy trying to figure out the problem that I might got instant alzheimer..
So I need help on a tank issue.
I attached a simpel drawing of my ladderdiagram and a drawing of the tank with the inputs/outputs.
The ladderdiagram works fine as it is now.
It is a tank. When I push the start button, the whole process begins, and in the end when the liquid reaches the LL low-level, I want the process to begin all over without the need to press start again.
So when you look at the drawing.
When START is pushed, V1 opens for filling the tank. when LH is reached, it stops V1 filling, and starts the V2 heating and the M agitator.
When TH has reached high temperatur, it stops V2 heating and opens V3 drain. When drain has reached LL low level, it stops V3 drain and M agitator.
Here the program ends. I want the process to repeat it self again when it reaches LL, so I dont have to press on start again.
I have tried severals things, but is just messes up my other parameters. Please advice without making to many changes in the ladder.
Best regards Hamid
P.S sorry for my bad hand-drawing. I was so busy trying to figure out the problem that I might got instant alzheimer..