In my high speed counter setup I've attached the interupt the move the counter value to a temp register and zero the counter. I think my counter is missing counts when this reset takes place. Has anyone else had this problem?
It is too bad the counter card designers have reset inputs instead of inputs that latch the current counts. The designers made it very easy to do the wrong thing which is a violation of Delta rule #2.
There is an answer in there somewhere. You just have to search for it.
Not sure how you do this in a S7-200 but; Store the count value on the interrupt event and then take away the stored value from the running counter value. So the counter never stops.