I just want a simple rung and how to allocate the B:1. I know when i'm in the binary mode i can change the value to 1 if i want it to be true and zero for false. I have to stop it before pressing open or close button for either direction. I also realize when the door is opening or closing you can use the open button to stop it when its closing which stops it and press open again to open it. I'm opening or closing and my instructions seem different from yours. You seem to have done an advanced program for the door simulation. You may want to check out the old LogixPro programs in the 'Downloads', AB section. Now maybe you will take the time and effort to set it up the logic properly, and finish it for God's sake!Īlso attached is the proper Door Opener method of using 2 flags to halt the door when the opposite Close or Open button is pressed to the direction of travel. That sounds about like what has been happening.

You would be screwed before you ever got started. If you did not use B3:0/1 'Drain Cycle' to cause Rung 010 to wait until Step 3, then it would try to end the program in Step 1 (when the tank is also at low level). If you use the Low Level switch in Step 3 (without a Step 3 Drain Cycle flag) then your Pump 3 will try to start draining the tank even as you are trying to fill it! Can you see that you might need to learn this technique? The only problem is that back in Step 1 Tank Filling, the tanks starts out at Low Level, and the Low Level switch will be ON. The first thing is you are going to ask: 'Why do I need the Step 3 Drain Cycle relay B3:0/1 on Rung 009? I will just take a short cut and do without that flag and simply use the Tank Low Level switch and be done with it'! Here is an example of how to use the flags or Step Relays in Rungs 009 and 010. All you need to do is use 3 Binary memory bits, controlled by normal logic instructions such as Latch (L), Unlatch (U), and Output Energize (OTE).ġ) The 2 things that show me the tank is filled in my program are the done output of the flow meter 1 CTU and the low level sensor.Ģ)The done output of the mixer RTO tell me when its finished.ģ)The done output of flowmeter 3 tells me when its finished and reset. When the Drain Cycle is finished (what 2 things tell you that it is?) then reset RTO Mix Timer, energize 'Auto Stop', and unlatch 'Drain Cycle'.ĮDIT: If I had known you were working on the Batch Mix Simulator Exercises 1 and 2, I could have told you that you did not need to do any Data Table edits, changes, or even look at the Data Tables at all.

(What DONE bit tells you that the mixing cycle is finished?) Latch 'Step 3: Drain Cycle' and unlatch 'Mix Cycle' when the Mix Cycle is finished. (What 2 things each show you that the Tank is filled?) Latch 'Step 2: Mix Cycle' when the Tank is filled in Step 1. You need about 3 now: Mix Cycle B3:0/0, and Drain Cycle B3:0/1, and Auto Stop B3:0/2. It should give you some ideas about the flags.

How to display data table in logixpro