capture hold simulation time

[Ironwood]

I am new to labview and have not be able to figure out how to cature a time given a certain condtion.

In a simulation loop I have  a function which shows the elapsed time of the simulation. I want to capture the time when a simulated frequency signal is at or below a reference frequency.  The vi should still be running with the captured time.

This is want I want to do in pseudo code:

Fref:   The referance frequency, does not change during simulation
Fsim:  The simulated frequency, changes during simulation
time:   The simulation time
Tf:       Fault time, the time captured

While simulation is running
    If Fref >=Fsim
       Tf=time
    end
end

[andre.buurman@carya]

Draw a while loop in a case structure inside add the greater or equal function before the case structure and place a get current time function in the true case. To be able to save the time there are several possibilties:

1. Use a LV2 style global (my personal favorite)
2. Add a local to an indicator in the true case wired to the time function.
3. ....

I think looking at your question doing the basics course will be a good starting point.

Have a look at: http://digital.ni.com/demo.nsf/websearch/CE34B1339DE04F2086256E930074129F?OpenDocument&node=1381_US 

Message Edited by andre.buurman@carya on 11-02-2007 12:24 PM

Message Edited by andre.buurman@carya on 11-02-2007 12:27 PM

[Ironwood]

Thanks. After reading your comment I looked back at what I was create a conditional loop and if the comparison was true then the true statement and a local variable in it.