Who can help me with a PID VI?

[johnsold]

Your Simulate Signal requires 1 second each time it runs. The signal loop (without DAQ) takes about 1.1 seconds for each iteration. The Data loop (without DAQ) runs in less than a millisecond with 100 data points in each signal. Here is a modified version that just tests the loop speeds. I do not have any DAQ hardware or DAQmx so I cannot judge how much effect that part has.

If you want to update the power output more than once per second, you will need to acquire and process the data differently, perhaps using point-by-point analysis VIs.

Lynn

[Vr6Fidelity]

Lynn, i cannot open the VI you posted. It also has two periods in the filename which may have screwed things up. I tried to modify the filename and re-open but it did not work.

[johnsold]

I just looked at your VIs again and see that you are using version 7.1. I had saved in LV8. If you try to open an LV8 VI containing an Express VI from LV7.1 it will not open and may not generate an error message. That has been reported to NI, but since the problem exists in the older version, it probably will not be fixed.

Here is a copy saved for 7.1. I have not opened it in 7.1 to try it,so there may be other errors.

Lynn