Problem with trend data

[FrancescoBellino]

Trends values are sampled once a minute, all values changes in between are not taken into account. Show your script for coefficient calculation. What is the script sleep time?

So the trendlog sample every minute and then perform the average of the 5 values?

I upload the script there. It has a sleep time of 1 second as the pool time od the Modbus devices.

Thank you