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Electromagnetic braking system program

I am trying to create a program on Labview for my project that will have a timer, that at the timeout will trigger an electromagnetic brake that i have connected to the powersupply and DAQ card. On DAQ assistant (In Labview), when I do the initial installations it triggers the brake.

 

I cannot get DAQ- assistant to trigger my brake at port-0 of my DAQ card, when i run the program.

 

I have tried many ways of creating the program, but nothing seems to work. Could anyone give me any advice?

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Please post your VI. It is almost impossible to daignose the problem without seeing the code.

 

One thing seems probable: the start or power-on state of the output to the brake appears to be the same as the state which activates the brake.  Check the documentation for your DAQ device (and tell us what it is) to see hwat its start-up behavior is.

 

Lynn

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lret.JPG

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This is my vi. I cannot quite work out, how to make the program to trigger my brake (as an output), as in DAQ assistant.

 

Many thanks in advance.

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Hello

 

I would like start by ensuing I understand what you are trying to do in your program.

Pseudo code:

Run program

Wait for X seconds

Drive digital pin low

 

Is this the correct program flow?

 

regards

Matt Surridge

National Instruments
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