I want to use the TagMin function to return the min acrhived value for a period. But it seems the function is doing a statistical calculation but I need the minimum logged archive value. Reason is I am trying to count the number of skips per hour which is based on a totalizer . Any help or recommendations would be appreciated.

I wonder if you are missing something! The TagMin gives exactly what one would expect: the minimum value over the time range.

Check out the help on this function: PI Server