Chapter 4
4-29
Getting the Totalizer Value
If users want to get the actual counter value, a formula such as follows
can facilitate an easy calculation from the initial counter value, overflow
value and current counter value:
Vtol = {|Vini - Vmin (or Vmax) |+ 1} x |Vvf| + |Vini - Vcur|
Vtol : totalizer value
Vini : initial counter value
Vmin : min. couner value = 0 (fixed value)
Vmax : max. counter value = 2
32
= 4,294,967,295 (fixed value)
Vvf : overflow value
Vcur : current counter value
Example:
If the initial value =10, overflow value =4, min. value = 0, current
counter value = 3, the totalizer value could be calculated as
Totalizer value = {|10 - 0| + 1} x| 4 |+ |10 -3| = 51
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