tt_count$ mystery - logic for tools called up more than once

[JCDFCM]

Can someone explain the logic behind the enhanced tool table variable tt_count$.  If the tool is not called up, tt_count$ = 0, if the tool is called up for the first time, tt_count$ = 1, but if a tool is called up more than once, the tt_count$ will be some random number and not what I thought. If I called up a tool twice (not back to back), I'll get tt_count$ = 6. when I was expecting 2.   Why?

If it represented the actual number a tool was used, logic for sequence numbers would be a lot easier as compared to buffer files or lookup tables. Our shop likes to have a tool sheet that has a unique N number to search for representing not just the tool but the specific time the tool was called up. Buffer files work and I use them but I'm thinking that if I go to the enhanced tool tables for new posts, the logic would be more readable. Any help greatly appreciated.

[Zaffin_D]

It counts all tool changes, not just the physical ones.

A stack is my preferred method for tracking the number of times a tool has been used.

[JCDFCM]

Thanks! I may have to experiment with stack (have not used it before) as currently I'm using a lookup table which is simple in logic and fine for machines with 30 or less pockets but when you have a horizontal with 330 pockets...yikes!