UP/Down Counter value save

Hi,

When having a power cut, obviously I lose the value of the UP/Down Counter, as a solution I have tried without success to do it via node red, detecting when the logo8 starts and then injecting a numerical data to the initial value parameter.

Is there any other solution to maintain the counter value in the event of a power outage?

I attach a node-red code also the logo program with a failed example of counter value rewriting by inject in the db1.dw16, where I have the initial value of the counter

Thanks a lot for your time