Help!!! I have a problem in the input analog 4 ...20 mA the valuer in TD is not correct with the reality.

For instance in my input have 8,3 mA valuer correctly in TD must be 26,6 º C, but valuer is 40ºC.

I've changed the gain and offset, but not change the valuer.

thanks 

Hi,

0º = 4mA - 100ºC = 20 mA

Is a control for HVAC sistem.

Thanks your help

Charles

Thanks,

Tomorow I go test in machine.

Thanks your help.

Charles 

Have your basic LOGO! analog inputs?

You have set that your Basic LOGO have 4 analog inputs, so the extensionunit have Ai5 (an Ai6)

If your basic LOGO have NO analog inputs, then you must use Ai1 for the analog input