Need help. It has a system that reads an analog laser distance sensor 4..20mA and shows a calculated result of the tire diameter on a TD Logo.

The problem that the analog sensor oscillates very few in small values, however this small oscillation causes many variations in the calculation presented to the user.

I would like to know how I could do a stack of the last readings (example 10 last readings) for averaging and thus reduce the variations in the calculations.

I am using a Siemens Logo Oab6 and an AM2 module.