Please understand that I am very new to all of this.
Here is my problem:
This project is to show a view of the tank level in % as well as the volume in litres
I have an OPC server that is working well and I am able to get values from the various instruments that it polls.
All that works fine and I can get value from a level instrument in % and get that to an input channel with a matching signal and I am able to display that in the view.
Now I want to make another channel that uses a formula to calculate the volume based on the % from the level instrument I want to display the volume in the view.
Can you please help me?????
I am reading a signed integer into Rapid Scada but when it goes negative I get 65??? for a value hwo can I get it to show a negative number? I am not using any formulas now. I wil be using both positive and negative numbers.