Good Morning Programmers,
I have been working on self-training using LogixPro, and I have written a program for a Batch Simulator. Its not perfect, but it works....mostly.
It seemed to be working fine at first. I was called away from my desk and left the simulation running. Something went wrong while i was gone and I can't figure out what it was.
What I am attempting to do is allow pumps 1 & 2 to fill the tank. Mix and for a selected amount of time while maintaining a constant temp. Then energize pump 3 to empty the tank, and have the process start all over again.
The issues noticed:
- The Mixer and Pump 3 ran continuously.
- Pumps 1 & 2 were being controlled by the high level sensor, but once it changed states, the pumps would run again instantly filling the tank back up.
The only thing that seemed to be working as intended was the burner and thermostat. Anyways, that's the gist of what I am dealing with. Hopefully this description makes sense.
Attached is my program and a pic of the simulation I am trying to operate. I am asking for someone to look at my program to help me figure out what went wrong, and to help me understand my mistake. Any feedback you can provide would be greatly appreciated. Thanks in advance.
I have been working on self-training using LogixPro, and I have written a program for a Batch Simulator. Its not perfect, but it works....mostly.
It seemed to be working fine at first. I was called away from my desk and left the simulation running. Something went wrong while i was gone and I can't figure out what it was.
What I am attempting to do is allow pumps 1 & 2 to fill the tank. Mix and for a selected amount of time while maintaining a constant temp. Then energize pump 3 to empty the tank, and have the process start all over again.
The issues noticed:
- The Mixer and Pump 3 ran continuously.
- Pumps 1 & 2 were being controlled by the high level sensor, but once it changed states, the pumps would run again instantly filling the tank back up.
The only thing that seemed to be working as intended was the burner and thermostat. Anyways, that's the gist of what I am dealing with. Hopefully this description makes sense.
Attached is my program and a pic of the simulation I am trying to operate. I am asking for someone to look at my program to help me figure out what went wrong, and to help me understand my mistake. Any feedback you can provide would be greatly appreciated. Thanks in advance.