PID In-Range Ideas

[baronep]

Is there a VI that will do averaging for you? If not, how do you do it?

[apalrd]

You combine a check of error with a timer.

The psudocode would be:

int timer = 0; //Make sure you use a signed type to prevent underflow


int delta_t = time_now - time_last; //delta_t is millisecond loop time - in LabVIEW it would be a Tick Count block and a shift register/feedback node to store the last time

if(abs(error) < threshold) timer += delta_t;
else timer -= delta_t;

if(timer <= 0) timer = 0;

if(timer >= threshold) fire();