interruption of a structure of consumption of prodcer to regularly test the position of the servo

Hey guys, I'm relatively new to labview and currently trying to make a multi snake like robot scene. I was interfacing with Controllers USB pololu and the need to manually control the first step and I have the remaining steps to follow, I have the first stage, using the controls on the front panel. I use a model of consumption of the producer and have pushed the button Activate an event and then queued a case in a second "loop of material."

my current problem is now I want to start working on the control of the secondary step passively, so I want to move the front of the stage tilted upward and then start rolling on before and the second stage begins to follow in the same position. I want to interrupt regularly and check the positions on the servos to compare and to act accordingly. My first thought is to interrupt the timeout in the case where structure and test if the servos are in the same position. the problem is that my visa reference is in the other loop.

What would be the best way to go about this? should I just queued in my gear loop on a time out and then test the position of the servo. or is there a way to share my visa resources in the loop of the producer? I originally wanted to store the reference in the loop of producer and pass whenever I went to the consumer loop but I couldn't figure a way to return the updated reference and I kept getting errors.

call loops are an option here? any advice would be helpful. even if you have a better structure to redo the entire project. I'd love to hear it for next time if nothing else. also if theres a better void / forum bad gladly move the pole.

Thank you guys

1. I aim to convey information/data to the loop of the reactor of the user interface.  Leave the loop creator UI just intercept the events of GUI and send jobs to the reactor loop.  You can create more brains to the reactor loop and let it also receive the strap of material information/work.

2. a simple concept for a regular position servo application would be an additional loop.  It's the only work is have a wait timer, then queue on demand to the loop material to ask him to send the position of the servo.  It will send to the loop of the reactor, as always, and the loop of the reactor will have built to react appropriately when it gets the position of servo information.

3. I would not speak for the servos in any other place that the loop of material.  There are all kinds of mess if you can send orders series of different loops at the same time, can receive the answer poorly or not at all.

Sorry, don't have time to go into details, but hope this helps a little, when you think about the implementation of the app.

-Kevin P

4 P.S.  I also wanted to talk about: it seems that both your reactor and Hardware loop are consumers of the same queue.  Although I see not how did you preview first and then queue only if necessary, he is still not a recommended approach.  Consider: If a loop is blocked when one of his messages is in the front of the queue, it will make the other loop stuck too.

Tags: NI Software

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