Hy,

I need help writing a code to control VAV regulators according to CO2 sensor. I need to control in linearly. Like when the CO2 level is 600ppm the output for the regulator is 0V and when the CO2 level is 1100ppm the output is 10V. I am using LOGO8 controller. 

I am new to LOGO )working with TIA portal regurally) so the answer could be very basic, but i havent found it yet. Could someone help me and point me to the right way (reccomend using a specific point or give me a code examplke from where i could go forward)

Thank You in advance,

Martin Mölder

What is the range of the sensor (ppm)? 0-2000ppm or other?

What ist the Output of the sensor? 0-10V? Or 0/4-20mA?