Good morning, i should build a totalizer given a 4-20mA input. once the input has been treated and the liters per second have been found, I should total them and memorize them so that the data remains even if the power supply is removed.
It's possible? thank's

ixo65

Yes, it's possible.

In attachment a example for a similar function.

 Thank you,

If i restart logo, the sum is reset?