Summing signals

[Yassine]

Hello,

I am wondering why does a signal representing the sum of 3 signals have no values in some periods? 

Thanks

Edited January 25 by Yassine

[Thorsten Vogt]

Hi Yassine, 

it would be helpful if you could provide some more details, like how the calculation is done or if there are warning or errors showing up in the Details Pane.

In most cases gaps in the data appear if the maximum interpolation defined for the the signal is to small or invalid values exist in the data. So you might want to try setting the maximum interpolation to a higher value (using $signal.setMaxInterpolation()) or remove invalid values (using $signal.validValues). 

More information can also be found in this post:

Regards,

Thorsten

[Yassine]

Thanks Thorsten, I already tried both validvalues() and setMaxInterpolation(), it didn't solve the question!

Note: the gaps areas correspond to invalid data replaced by 0 using replaceNotValid(0) in the summed elements. The total seems not recognizing the replaced data.

Edited January 25 by Yassine

[Thorsten Vogt]

Can you post the formula you are using for summing the signals up?

[Yassine]

For the signals summing:  ($A+$B+$C).setMaxInterpolation(5d).setUnits("kW")

For each signal $A, $B and $C in the operation the general formula: $signal.replaceNotValid(0).agileFilter(1min)

Edited January 27 by Yassine

[Thorsten Vogt]

Hi Yassine, 

seems like you set the Max Interpolation to 5 days. The gaps in the screenshot seem to be bigger than that value. Can you check setting the value to a higher value?