Real-Time Measurement and Control

[mi007]

i am trying to measure the rpm of a motor for which i had made a stopwatch which measures the time when the logic goes false, stops as soon as the logic goes true and starts again as the logic goes true. the problem i am  having is that i want it to display the time as the logic goes false and reset itself as soon as the logic goes true. i had tried so many things but till now not able to sought the problem. can anybody help me in completing this vi.the vi i had made uses a simulated signal for temperory time being i will connect it with the hardware later on as this problem get solve.

vi attached

[P@Anand]

Is this you wanted to achieve? I have made a slight modification in your code check it.

[mi007]

thanks its working perfectly. how can i store the value of maximum time that i get before it restart. because then onlt i will divide 60 with the maximum value and can convert it into rpm.

[P@Anand]

Just take the value coming from the shift register in the True case before making it as 0. That should be your maximum value.

[mi007]

how to do that. can you help me in that.

[P@Anand]

Check the attached code for reference.

[mi007]

perfect......perfect......perfect. thanks brother you just saved my lot of time. thanks once again..

[mi007]

can you tell me how to get this final value out of these 2 case structure unchanged.

[P@Anand · Accepted solution]

Try to go through the Basic Materials of LabVIEW where you can see how you can use shift registers.

[mi007]

thankyou very ..very...much. i want to accept it as solution but how to do that because i had already accept the previous as solution.