Hi Mike
Have you ever used Integromat? Really good cloud based middleware platform that I’d recommend. You could read the values into Integromat and store within the data store there with the scenario having the calculation logic in it each time it receives new values and should the output of that equal a value that you want to trigger something in Loxone you could then have Loxone trigger the action.
Take a look and give me a shout if you think it’s viable for your situation and you’d like to discuss further - happy to help where I can.
An example of where I use this is certain members of our house are bad for locking the car when the arrive home so when they open the front door on the code touch Loxone polls our Integromat scenario which then goes out to Mercedes APi and checks if the car is locked, if not the kitchen AMP is turned on and the music server plays a sound file telling her to lock the bloody car! :)
Cheers