Tank filling and emptying

Hello Forumites Labview,

I know there have been only a few very similar questions asked here recently as I'm about to ask now, so apologies in advance for the inconvenience caused. I am also aware that some of you have attached examples of work and your answers, but unfortunately I couldn't open them that I'm using Labview 8.5 Student edition and I couldn't open the most recent examples of edition. I have attached a VI of a project I'm working on that and what I want to know is how to get the correct sequence of operation for this VI. Basically, I would hope get blowjobs 1,2,3,4 and 5 with valves 1 and 2 and pump1 to energize and begin to fill my tank of the mixer. Then when this tank was filled I want to pipe 6 and 7 and 2 and 3 valve to open, the bowl of the mixer to start to empty the tank of product to start filling pump. When the product tank tips 8 and 9 with 4 valve opens again. Also it would be possible to cut the previous tubes, valves and pumps under the empty mixer Bowl. Once again apologize for the very lengthy post and the object that has probably been covered countless times before. I'm new to Labview and have no programming experience whatsoever so feel out of my depth here. All answers will be appreciated.

Kind regards

Dave.

You're so close.  Your efforts are much better that others who have posted here, ask for help without even having tried to write code at all.  I have LV 8.5 so I can't make corrections and send it to you.  Because you have made a good effort, I'm 8.5, I'd do the fixes for you.  But since I just 2009, I will try to explain what to do.

First, you must create a while loop at the beginning of your code.  Place the process control to start inside the while loop.  Wire from the control to the stop sign.  Wire also flat control of sequence structure, through the wall of the while loop.  Add a delay to the inside the while loop with a contribution of 100.  Here's what will happen.  The loop runs every 100mS.  As long as the boot process is not pressed, the loop will work again.  When the button is pressed, the loop stops and button data will go to the plate sequence.  The flat sequence does not start until it sees details of the Enter key.  To see this, turn on the light bulb and watch the flow of execution.  The delay of 100 ms is a good idea for that time CPU is not used 100% by Labview.

Since the process of starting data will be set to true when the flat sequence starts to run, the pipes and valves specified in the first picture everything.  In your VI original, if you ran the program without first pressing the button, the valves and the pipes were all turned off.  Now the first image is running, and the loop continues until the mixer is full.  If you want to cut a few pipes and valves at this point, right-click on those that you want to stop and choose Create - Local Variable (you must do this one at a time).  Put local variables within the Framework 2.  Wire a constant False for each of them.  Put this before the loop in box 2.  This will stop the elements and then the loop continues until the product tank is full.  If you want to empty the mixer as the filling product, create a local variable to the blender and put in the frame 2 while loop.  Subtract 100 - i and the lead at the local level of the mixer.  This will cause the Blender empty while the product fills.

At the beginning of your code, you must return all the pipes, tanks and valves to the State by default (off or empty).  Look in the Application Control palette and select node invoke.  Put it on your diagram before the new while loop you created for the start process button.  Of the error on all loop wire the border so that it can run first.  Underline the word App in half top of the Invode node, right-click and select Select Server VI - VI - VI - class.  The word App will switch to VI.  And then tap the word method in the bottom half.  Left click and select default values - reset all default.  Now when you start your program, all controls and indicators will go to the default state.

If you need additional help, just ask.

Tags: NI Software

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