controle pid com cálculo da média de duas entradas analógicas de 4a20mA

Hey guys.

If you can help me, I would greatly appreciate it.

I have a temperature control project with a signal from two 4a20mA analog instruments, so my PV is actually the average of the signal between the two instrument values.

Furthermore, I need to show this PV value (average of the two instruments) and SP on the LOGO TDE HMI.

I have a problem, because I need to normalize the signal of the two instruments that are from 0 to 200°C (which in the clp range would be 0 to 1000) to show the normalized value of PV, SP and AQ on the TDE HMI screen. .

However, the PI CONTROLLER block only allows working with the logo's own range, which is from 0 to 1000, not allowing me to work with the normalized values ​​(0 to 200°C).

I tried using other blocks to normalize and denormalize again, but to no avail.

Could someone help me please?

Below is the logic I have developed so far.